The Third Angel is addressed as:
the Angel of the church of Pergamos.
The Pergamos Angel is known throughout the book,
as the Angel of the third religion -
The Hindu Religion.
The Angel for each religion has a specific mission.
The Angel of the Hindu Faith is known throughout this Book as the third Angel. It is IMPORTANT to understand that this collection of verses is only of when the Hindu Angel is addressed. There are MANY additional verses throughout the Book of Revelation that deal with the Hindu religion.
The Hindu Faith is one of the world’s largest religions, and one of the oldest. It began in India where it is still the predominant religion but there are now Hindus throughout the world. The Hindu Religion is also very ancient and there is nothing dogmatic in the Baha'i Teachings saying whether it or the Sabean Religion is the older. Historians and students of comparative religion may dispute as to just which is the older religion. Both of these religion's histories are lost in antiquity and the Baha'i Writings themselves are silent on the subject.
"With reference to your question concerning the Sabean and Hindu religions; there is nothing in the Teachings that could help us in ascertaining which one of these two Faiths is older. Neither history seems to be able to provide a definite answer to this question. The records concerning the origin of these religions are not sufficiently detailed and reliable to offer any conclusive evidence on this point."From a letter written on behalf of Shoghi Effendi to an individual believer, November 9, 1940: Extracts from Guardian's letters on Hinduism, Buddhism and Zoroastrianism and Related Subject, Op. cit.
Lights of Guidance, p. 502
"There are no dates in our teachings regarding the actual dates of the Prophets of the Adamic Cycle, so we cannot give any. Tentatively we can accept what historians may consider accurate. Naturally the dates referring to Muhammad, the Bab and Baha'u'llah we are sure of."November 25, 1950 From a letter written on behalf of Shoghi Effendi to an individual believer, Lights of Guidance, p. 503
Nevertheless, the Baha'i Teachings have the highest regard for Krishna, the founder of the Hindu religion.
Blessed souls -- whether Moses, Jesus, Zoroaster, Krishna, Buddha, Confucius or Muhammad -- were the cause of the illumination of the world of humanity. How can we deny such irrefutable proof? How can we be blind to such light?'Abdu'l-Baha, The Promulgation of Universal Peace, p. 346
[Baha'u'llah was]...to the Hindus the reincarnation of Krishna;...To Him the Bhagavad-Gita of the Hindus had referred as the "Most Great Spirit," the "Tenth Avatar," the "Immaculate Manifestation of Krishna."Shoghi Effendi, "God Passes By", rev. ed. Wilmette: Baha'i Publishing Trust, 1987, pp. 94-95
'The Baha'i view of 'reincarnation' is essentially different from the Hindu conception. The Baha'is believe in the attributes and qualities, but maintain that the essence or the reality of things cannot be made to return. Every being keeps its own individuality, but some of his qualities can be transmitted. The doctrine of metempsychosis upheld by the Hindus is fallacious.Shoghi Effendi, To an individual believer, March 27, 1938
Lights of Guidance, p. 536
Possibly the most difficult concept for most people to understand in the Baha'i Teachings is the one that is both most central and unique to it and that is the concept of the "Manifestation of God". Not a 'reincarnation' as understood by many Hindus nor even an 'incarnation' as thought of by many Christians. Rather a finite reflection of the Infinite God, the analogy often being given of that of a distant star appearing in the mirror of a telescope. The image in the telescope is all that we know or see of the star but certainly not the star itself. Appearing night after night in the telescope mirror. Never the exact same light but always from the same source representative of the same star.
The Jews await the Messiah, the Christians the return of Christ, the Muslims the Mahdi, the Buddhists the fifth Buddha, the Zoroastrians Shah Bahram, the Hindoos the reincarnation of Krishna, and the Atheists - a better social organization! Baha'u'llah represents all these, and thus destroys the rivalries and the enmities of the different religions; reconciles them in their primitive purity, and frees them from the corruption of dogmas and rites.Tablets of 'Abdu'l-Baha v1, p. vii
Baha'is believe that religious revelation is continuous and progressive and that, from the very beginning of human history, God has periodically sent divine educators to the world to guide mankind. The appearance of these divine educators -- Krishna, Buddha, Zoroaster, Abraham, Moses, Christ, Muhammad and, in our own age, the Bab and Baha'u'llah -- has signified the founding of a new religion, and yet none of these religions is really new; they are stages in the unfoldment of the same religious truth proceeding from the same God. They teach the same, unchanging spiritual principles, and they differ only in their social teachings, which vary according to the needs of the age in which they were revealed.
Baha'is accordingly believe in the divine origin of all the major religions and honor and revere their founders as prophets of God. The reason that Baha'is are Baha'is is solely because they believe that Baha'u'llah, the founder of their Faith, is the latest -- but not the last -- of the divine educators sent by God, and that his teachings have been sent by God specifically to meet the needs of our own age.Baha'i International Community, 1993 Feb 18, Eliminating Religious Intolerance
The important concept is that the Book of Revelation is addressed to all the religions of the world. Many of those other religions existed centuries before the Christian religion and were the only known religions in large portions of the world for centuries after the Christian religion came into existence. The followers of those religions were and are a part of God's creation and He would not leave them without spiritual guidance anymore than they would be left without the other essentials of life. The ancient religions continue to this day. Each one built beneficial societies and was a part of the progressive development of mankind.
 And to the angel of the church in Pergamos write; These things saith he which hath the sharp sword with two edges;
Pergamos - Hindu - Commentary
V.12 John is now told to write to the THIRD angel, the angel of the church in Pergamos. Pergamos was a small town in Greece, (now Turkey) where John had been teaching. It was a principal center for worship and popular because of the Temple of Asclepius, which was known to offer healing. The word Pergamos means 'Popular', but since the town is now in total ruins it is no longer significant, however the word â€˜popularâ€™ is. We relate it to the Hindu Faith. The message to the Hindu Faith is that Baha'u'llah speaks with a sharp sword, shown to be both His approval and His criticism.
 I know thy works, and where thou dwellest, even where Satan's seat is: and thou holdest fast my name, and hast not denied my faith, even in those days wherein Antipas was my faithful martyr, who was slain among you, where Satan dwelleth.
V.13 The Commend:
He commends them for their works and holding fast to their prophet Krishna. For those who have suffered poverty, they have received spiritual richness. 'Antipas' was well known for his goodness in India, and tells them that He has not forgotten how he became a martyr.
 But I have a few things against thee, because thou hast there them that hold the doctrine of Balaam, who taught Balac to cast a stumbling block before the children of Israel, to eat things sacrificed unto idols, and to commit fornication.
V.14 The Condemn:
He condemns them for their worship of idols and following the doctrine of Balaam. The idols are not physical figures but symbols of materialism and worldliness.
Balaam was a high priest who went against the Israelites. Balac (also spelled Balak) was a king, who by following Balaam cast a stumbling block before the Israelites for riches. Balak is a symbol of gold and materialism.
 So hast thou also them that hold the doctrine of the Nicolaitans, which thing I hate.
V.15 The Nicolaitans are a group that went against religion, and strangely even today many call themselves "non religious". Many of the leaders of thought, although they have been very intellectual and well educated people, they are condemned for this worldly thought.
 Repent; or else I will come unto thee quickly, and will fight against them with the sword of my mouth.
V.16 The Threat:
He is asking them to listen to His new message, and says that if they do not, He will come quickly with the "sword of His mouth", which means that until they recognize His new religious teachings they will have tribulation.
 He that hath an ear, let him hear what the Spirit saith unto the churches; To him that overcometh will I give to eat of the hidden manna, and will give him a white stone, and in the stone a new name written, which no man knoweth saving he that receiveth it.
V.17 The Refrain:
"He that hath an ear, let him hear what the Spirit saith unto the churches:" He tells them to listen to what the Spirit is saying.
"To him that overcometh will I give to eat of the hidden manna, and a white stone, and in the stone a new name written, which no man knoweth saving he that receiveth it."This promise is very great. The hidden manna is the teachings for the unity and love of mankind, and the white stone is a symbol of spiritual life. The new name is Baha'u'llah, a gift to those who recognize the new Manifestation for this age.
O thou who art attracted to the Holy Fragrances!The light of truth hath made thine eyes to see, the voice of God hath made thine ears to hear and the lights emanating from the beauty of the Light of the World both made thine heart attracted and astonished.ABDU'L-BAHA, TABLETS OF ABDU'L-BAHA V1, P. 132
 And when he had opened the third seal, I heard the third beast say, Come and see. And I beheld, and lo a black horse; and he that sat on him had a pair of balances in his hand.
V.5 The Third Seal and the Third Angel is associated with the Hindu Faith. The horse of the Third Seal is black and again the horse is a symbol of great power. The rider has a pair of balances, which symbolize judgment. Some have viewed the horseman as coming to render the benefit of justice, but these scales of the law have become as much a burden on the poor people of the world as the swords of war, death and famine borne by the other riders.
All the peoples of the world are concerned about justice, and many of the old systems are seen as deficient. The caste systems and customs of ancient India are seen to be non-applicable for the present day. These black robed judges of the black horse are faulty, as their balances are no longer balanced. While British law, based upon a foundation from the Old Testament and the Ten Commandments, a pure source, was taken to India, it is evident times have changed and the legal system in the Western world has strayed into strange and oppressive paths. The problem for the 'End of Times' is that justice in the law has become legalisms that are not effective.
These are the appointed days which ye have been yearningly awaiting in the past -- the days of the advent of divine justice. Render ye thanks unto God, O ye concourse of believers.THE BAB SELECTIONS FROM THE WRITINGS OF THE BAB P.161
 And I heard a voice in the midst of the four beasts say, A measure of wheat for a penny, and three measures of barley for a penny; and see thou hurt not the oil and the wine.
V.6 There is presently great concern among all the rulers regarding the economic situation. The specific values of currency and how it relates to the imbalance with other countries - some rich and some poor - are measures that need to be resolved.
The present system has brought a threat to the world that there will be such great poverty and starvation that most will not be able to afford food or the other necessities of life in the midst of the GREAT blessings of bounty and plenty that the Lord has bestowed upon on this earth.
 And the third angel sounded, and there fell a great star from heaven, burning as it were a lamp, and it fell upon the third part of the rivers, and upon the fountains of waters;
V.10 The Third Angel represents another of the ancient existing religions - the Hindu Religion. In its own history it counts back to what may have been predecessor or Sabean Teachings. It remains very prominent in the world, being the predominant religion of India which is at this time the world's second most populous country. It has certainly been a great star in the firmament of religions and saying that the great star (lamp) fell from heaven, indicates that the star left its rightful place and was no longer a lamp that gave the spiritual light that brought harmony, peace and unity, but rather there became inharmony and dissension between the castes and factions.
The theme of the star falling from heaven in relationship to India may have a particular significance as seen in the next verse.
 And the name of the star is called Wormwood: and the third part of the waters became wormwood; and many men died of the waters, because they were made bitter.
V.11 The archetype of the falling star may have a special application to this day, and to India, the predominant location of the Hindu Faith. The name of the star is given as 'Wormwood' (a bitter medicinal plant). In a sense it was the crowning scientific achievement of humanity, visible to all the world, and even surpassing the Tower of Babel, in mankind's reach for the heavens.
Because in the minds of many men the 'scientific way of life' no longer supported the true spiritual teachings of the Prophets/Manifestations it brought bitterness of life causing many men to die literally and spiritually. The life giving sweet water, the true spiritual knowledge of God's righteousness and justice, had been turned to materialism and bitterness.
What should have been an Age of Light, because of scientific attainment, became one instead of spiritual darkness which the Hindu writings call the dark age of Kali Yuga.
 And the third angel followed them, saying with a loud voice, If any man worship the beast and his image, and receive his mark in his forehead, or in his hand,
V.9 The third angel is identified with the Hindu religion. The prophecies and descriptions about each of the religions is so amazing when one reads about each of them in order. Without this key to understanding the scriptures there have been all sorts of strange speculations about the nature of the "mark of the beast".
If you look about all the religions with an open eye you will see that there is only one, and it is this one in the order of the religions, that predominately places a mark on its forehead, and while the mark itself is not the "mark of the beast", but rather a symbol of "the inner eye" actually located above the pineal gland, we can see here, and in all the religions of the world, that conformance to worldly systems often becomes predominant, and that is the mark of the beast.
In these days the people have debarred themselves from the effusions of divine grace by following in the footsteps of every ignorant one that hath gone astray. They have cast the Ocean of divine knowledge behind their backs and fixed their eyes upon such foolish men as claim to be well versed in learning without being supported by any evidence from God, the Lord of mankind.BAHA'U'LLAH, TABLETS OF BAHA'U'LLAH P. 252
Many people misunderstand about "the mark".
Just as people misunderstand they say that "money is the root of all evil", because of the verse -
6:10 For the love of money is the root of all evil: which while some coveted after, they have erred from the faith, and pierced themselves through with many sorrows.
It is NOT money that is the root of all evil. It is the LOVE of money that is the root of all evil. In reading the verse they somehow miss the word "love". One needs to use money to live, but they should not "love" money.
In reading this verse in the Book of Revelation, some people also miss it, but the operative word here is "AND". In a modern society one has to use money to live. But if instead of just using money for its proper purpose they use money AND worship (love) money, the Beast, material things, and they focus on that so that it consumes their mind and activity - that it becomes the purpose of their life, rather than God, well then, as in the next verse -
 The same shall drink of the wine of the wrath of God, which is poured out without mixture into the cup of his indignation; and he shall be tormented with fire and brimstone in the presence of the holy angels, and in the presence of the Lamb:
V.10 The third angel states that fire and brimstone will be rained upon these who have turned from God and one might observe that much/most of humanity may be deserving of fire and brimstone. Then one might wonder why this people have been singled out for mention in regards to that threat.
As with all prophecy, one cannot know its meaning, other than in general terms, until after it occurs, however, one might make the following.
The destiny of the Hindus and the Muslims seem to be intertwined in this case, as were (what has now become) the separate countries of Pakistan and India. Together they were not able to find unity, nor apart have they been able to find amity and security.
The external result between them, as indicated in this and other passages, may be fire and brimstone, however, all the verses also have interior spiritual meanings as indicated in the quoted below.
By the righteousness of Him Who is the Absolute Truth, were the veil to be lifted, thou wouldst witness on this earthly plane all men sorely afflicted with the fire of the wrath of God, a fire fiercer and greater than the fire of hell, with the exception of those who have sought shelter beneath the shade of the tree of My love. For they in very truth are the blissful...THE BAB, SELECTIONS FROM THE WRITINGS OF THE BAB, P. 12
 And the smoke of their torment ascendeth up for ever and ever: and they have no rest day nor night, who worship the beast and his image, and whosoever receiveth the mark of his name.
V.11 This is what scares people, and well it should. They just don't understand what it means. Do note the problem is worshipping the Beast. The operative word there is again "AND". Someone just properly using money, which is the mark of the Beast's name, need not fear - if they do not worship the Beast, that is to say place their love in money / the Beast rather than loving and worshipping God.
Once again, as stated in the long quote (second below) this applies to "all the peoples of the world" who have turned away from spirituality to materiality and "recognized standards" of decency, which is a meaning of taking the mark in their hand.
Still, there may be specifics for this particular people, the two factions of which have both developed nuclear weapons, "the smoke of their torment ascending up" being a very visual description of a nuclear mushroom cloud and "the torment lasting for ever and ever" an apt one about the long term effects of radiation.
"On the day when the heaven shall give out a palpable smoke, which shall enshroud mankind: this will be an afflictive torment."1 QUR'AN (KORAN) 44:10.
The symbolic term "smoke" denotes grave dissensions, the abrogation and demolition of recognized standards, and the utter destruction of their narrow-minded exponents. What smoke more dense and overpowering than the one which hath now enshrouded all the peoples of the world, which hath become a torment unto them, and from which they hopelessly fail to deliver themselves, however much they strive? So fierce is this fire of self burning within them, that at every moment they seem to be afflicted with fresh torments...
Ere long, thine eyes will behold the standards of divine power unfurled throughout all regions, and the signs of His triumphant might and sovereignty manifest in every land. As most of the divines have failed to apprehend the meaning of these verses, and have not grasped the significance of the Day of Resurrection, they therefore have foolishly interpreted these verses according to their idle and faulty conception.BAHA'U'LLAH, THE KITAB-I-IQAN, P. 76
 Here is the patience of the saints: here are they that keep the commandments of God, and the faith of Jesus.
V.12 Praise is given to those who keep the commandments of God in times of tests and who have faith as Jesus taught.
Thus hath the Dove of holiness proclaimed: "Do men think when they say 'We believe' they shall be let alone and not be put to proof? [Qur'an (Koran) 29:2]BAHA'U'LLAH, GEMS OF DIVINE MYSTERIES: VERSE 32
 And the third angel poured out his vial upon the rivers and fountains of waters; and they became blood.
V.4 The third vial (associated with the Hindu Faith) was the broad spreading (like on the rivers and fountains) of the rules of human law, rather than God's Principles of Justice, this by the officials, bureaucrats and managers who were deprived of spiritual knowledge. All the vials are associated with each of the religions and in the following, 'Abdu'l-Baha shows the relationship to Islam.
"In the 4th verse, the rivers and fountains of water signify less influential men than the Ulama, who were likewise affected, because the knowledge of the people which should be, like water, the cause of life, becomes like blood; it becomes the cause of misleading the people (and so the cause of death), for they changed the teaching of God,"THIS APPEARS TO BE PARTICULARLY RELEVANT TO THE PRESENT DAY.
 And I heard the angel of the waters say, Thou art righteous, O Lord, which art, and wast, and shalt be, because thou hast judged thus.
V.5 The Third Angel is always associated with the Hindu Faith, which is always associated with 'rivers' and 'waters' which is a curiosity in that the Ganges pays such a prominent part in the Hindu religion.
"In the 5th verse the angel of the waters (i.e. the power of knowledge) is addressing God. He says: Thou art just and righteous, for these people deserved that their knowledge should be changed into blood."
 For they have shed the blood of saints and prophets, and thou hast given them blood to drink; for they are worthy.
V.6 The saints and Prophets had their blood shed in bringing God's message to us. Those who are responsible for shedding the blood of Prophets become dark in their spirits.
"For as they have changed the teachings of the Prophets, God has changed their knowledge into the blood of darkness, that they may drink it because of their deserts (sic)."
 And a mighty angel took up a stone like a great millstone, and cast it into the sea, saying, Thus with violence shall that great city Babylon be thrown down, and shall be found no more at all.
V.21 This Mighty Angel being the next one mentioned is the Hindu Angel. As peculiar as it may seem, this Angel being interjected into the events surrounding Babylon the Great, it is indicative that it has a role to play. Indeed, it may be the initiating role when the first stone is cast, a great mill stone, symbolic of the first use of a nuclear weapon.
Before the events happen we can only speculate upon them. The purpose of prophecy is not to foretell the future but for us to understand it in retrospect so that we will have confidence in the Source. Therefore, at this tme this is mere speculation, but we saw previously (in the unique way that verse 14:15 was treated) the exceptional nature that the Muslims of India (now Pakistan) would/could play regarding nuclear weapons.
13:19: For in those days shall be affliction, such as was not from the beginning of the creation which God created unto this time, neither shall be.King James Bible
Thus it is that he destinies of the nations of the world are intertwined.
These same fiery tribulations will not only firmly weld the American nation to its sister nations in both hemispheres, but will through their cleansing effect, purge it thoroughly of the accumulated dross which ingrained racial prejudice, rampant materialism, widespread ungodliness and moral laxity have combined, in the course of successive generations, to produce, and which have prevented her thus far from assuming the role of world spiritual leadership forecast by 'Abdu'l-Baha's unerring pen -- a role which she is bound to fulfill through travail and sorrow.SHOGHI EFFENDI, CITADEL OF FAITH, P. 126