Roman Emperor Constantine needed to make his subjects feel secure if he were to maintain control of the empire; he wanted to rule a unified empire, be it pagan and/or Christian. But first he would have to find a way to end the dispute over the divinity of Jesus-was he a man or God? So he ordered his Christian bishops to meet at Nicaea in 325 A.D. to settle the matter once and for all. To do this, "he made himself the head of the church, and thus the problems of the church became his responsibilities. As a whole the Western Empire with its Roman influence, with some exceptions, had accepted Tertullian and his new theory of the Trinity in the early part of the previous century, but in the East the church adhered more closely to the older formula of baptism in the name of Jesus, or Jesus the Christ. Especially was this true with the Armenians, who specified that baptism "into the death of Christ" was that which alone was essential (*28) .
Now let's see how Constantine got the Trinity. As previously shown, The Roman Empire at this time was being torn apart by religious differences between pagans, mostly Sun God worshippers, and Christianity. Constantine the Emporer was a worshipper of the Unconquered Sun, but he was a very pragmatic individual and saw the need to bring religious unity to his empire. The central doctrine of the pagans was the dogma of a Trinity that they had received from earlier pagans in Babylon (Chaldea). In this, the pagan Emperor, Constantine, saw a possibility for unifying his empire if he could only lead the majority of the Christians to accept a Trinity or a Duality. He knew however that he had to make them think it was their own idea. To this end, he, the Roman emperor Constantine summoned all bishops to Nicaea, about 300, but even though it was the emperor's direction, only a fraction actually attended.
This council went on for a very long time and the emperor worked behind the scene to get support for a Trinity or a Duality. This effort was not completely successful, but finally he got a majority and declared under imperial degree
that this hence forth would be the central doctrinal pillar of the Christian church, which by this time was apostate. Even with this declaration by the emperor himself not all bishops signed the creed. (*29).
So is was the political product of an apostate church, an apostate church that allowed a pagan Roman Emporer, Constantine, to tell it which dogma to accept at the Council of Nicea in 325 A.D., and then have it rammed down their throats as blessed dogma by another Roman Emporer, Theodosius, at the Council of Constantinople in 381 A.D. This in direct violation of God's (YHWH's) word found in the Bible " Ye adulterers and adulteresses, know ye not that the friendship of the world is enmity with God? whosoever therefore will be a friend of the world is the enemy of God." (James 4:4 AV), " If ye were of the world, the world would love his own: but because ye are not of the world, but I have chosen you out of the world, therefore the world hateth you." (John 15:19 AV).
Their solution was to create a creed making it illegal for anyone to believe Jesus was not the same as God by inventing the notion of a Trinity. This intellectual tower remained in full force for well over a thousand years, until the Reformation. (*29).
Contrary to popular belief, it was not Constantine's fourth century Council of Nicea in A.D. 325 that formalized the "Doctrine of the Trinity." The Athanasian Creed in the fifth century finally included the three, "the godhead of the Father, of the Son, and of the Holy Ghost...the glory equal, the majesty co-eternal So likewise the Father is God, the Son is God and the Holy Ghost is God; and yet they are not three Gods, but one God." Furthermore, this creed added that belief in the trinity "is necessary to everlasting salvation." Strong belief led to action. "Probably more Christians were slaughtered by Christians in these two years ([A.D.]342-3) than by all the persecutions of Christians by pagans in the history of Rome." (*30).
The fact is Christianity never conquered paganism--paganism conquered Christianity. (*31).
Ref:
*26 - McClintock & Strong's Cyclopedia of Biblical, Theological, and Ecclesiastical Literature, Vol. 6
*27 - Lamson, Newton & Durant, Will, "Caesar and Christ," cited from Charles Redeker Caesar and Christ, W. Duran (page 595).
*28 - ENCYLOPEDIA BRITANNICA, 11th Edition, Vol. 3, (page 366).
*29 - Payne, Robert, "The Holy Fire: The Story of the Early Centuries of the Christian Churches in the Near East" (1957); BETHUNE-BAKER, J,F. "An Introduction to the Early History of Christian Doctrine". Methuen; 5th Ed., 1933 and ENCYLOPEDIA BRITANNICA, 11th Edition, Vol. 3, (page 366); David, Francis and Blandrata, Georgio, "De falsa et vera unius Dei Patris, Filii, et Spiritus Sancti cognitone" [Latin](The False and True Knowledge of the Unity of God the Father, Son, and Holy spirit), 1566 A.D.; Eklof, Todd F., "David's Francis Tower, Strength through Peace," (06-16-02); The New Encyclopedia Britannica: " Micropædia, Vol. X, p. 126. (1976); Parkes, James, "The Foundation of Judaism and Christianity," 1960; Durant, Will. "Caesar and Christ." New York: Simon. 1944. Vol. 3 of The Story of Civilization. 11 vols. 1935-75.
*30 - Durant, Will, "Age of Faith,"
*31 - Jonas, Hans, "The Gnostic religion: the message of the alien God and the beginnings of Christianity," 2nd ed., 1963.
[source - DISCOURSE ON MAINSTREAM RELIGION:, by Iris the Preacher 2001]