Yes it is a false doctrine that is NOT in the Bible.Definition: The central doctrine of religions of Christendom. According to the Athanasian Creed, there are three divine Persons (the Father, the Son, the Holy Ghost), each said to be eternal, each said to be almighty, none greater or less than another, each said to be God, and yet together being but one God. Other statements of the dogma emphasize that these three “Persons” are not separate and distinct individuals but are three modes in which the divine essence exists. Thus some Trinitarians emphasize their belief that Jesus Christ is God, or that Jesus and the Holy Ghost are Jehovah. Not a Bible teaching.
What is the origin of the Trinity doctrine?
The New Encyclopædia Britannica says: “Neither the word Trinity, nor the explicit doctrine as such, appears in the New Testament, nor did Jesus and his followers intend to contradict the Shema in the Old Testament: ‘Hear, O Israel: The Lord our God is one Lord’ (Deut. 6:4). . . . The doctrine developed gradually over several centuries and through many controversies. . . . By the end of the 4th century . . . the doctrine of the Trinity took substantially the form it has maintained ever since.”—(1976), Micropædia, Vol. X, p. 126.
The New Catholic Encyclopedia states: “The formulation ‘one God in three Persons’ was not solidly established, certainly not fully assimilated into Christian life and its profession of faith, prior to the end of the 4th century. But it is precisely this formulation that has first claim to the title the Trinitarian dogma. Among the Apostolic Fathers, there had been nothing even remotely approaching such a mentality or perspective.”—(1967), Vol. XIV, p. 299.
In The Encyclopedia Americana we read: “Christianity derived from Judaism and Judaism was strictly Unitarian [believing that God is one person]. The road which led from Jerusalem to Nicea was scarcely a straight one. Fourth century Trinitarianism did not reflect accurately early Christian teaching regarding the nature of God; it was, on the contrary, a deviation from this teaching.”—(1956), Vol. XXVII, p. 294L.
According to the Nouveau Dictionnaire Universel, “The Platonic trinity, itself merely a rearrangement of older trinities dating back to earlier peoples, appears to be the rational philosophic trinity of attributes that gave birth to the three hypostases or divine persons taught by the Christian churches. . . . This Greek philosopher’s [Plato, fourth century B.C.E.] conception of the divine trinity . . . can be found in all the ancient [pagan] religions.”—(Paris, 1865-1870), edited by M. Lachâtre, Vol. 2, p. 1467.
John L. McKenzie, S.J., in his Dictionary of the Bible, says: “The trinity of persons within the unity of nature is defined in terms of ‘person’ and ‘nature’ which are G[ree]k philosophical terms; actually the terms do not appear in the Bible. The trinitarian definitions arose as the result of long controversies in which these terms and others such as ‘essence’ and ‘substance’ were erroneously applied to God by some theologians.”—(New York, 1965), p. 899.
Even though, as Trinitarians acknowledge, neither the word “Trinity” nor a statement of the Trinitarian dogma is found in the Bible, are the concepts that are embodied in that dogma found there?
Does the Bible teach that the “Holy Spirit” is a person?
Some individual texts that refer to the holy spirit (“Holy Ghost,” KJ) might seem to indicate personality. For example, the holy spirit is referred to as a helper (Greek, pa·ra′kle·tos; “Comforter,” KJ; “Advocate,” JB, NE) that ‘teaches,’ ‘bears witness,’ ‘speaks’ and ‘hears.’ (John 14:16, 17, 26; 15:26; 16:13) But other texts say that people were “filled” with holy spirit, that some were ‘baptized’ with it or “anointed” with it. (Luke 1:41; Matt. 3:11; Acts 10:38) These latter references to holy spirit definitely do not fit a person. To understand what the Bible as a whole teaches, all these texts must be considered. What is the reasonable conclusion? That the first texts cited here employ a figure of speech personifying God’s holy spirit, his active force, as the Bible also personifies wisdom, sin, death, water, and blood. (See also pages 380, 381, under the heading “Spirit.”)
The Holy Scriptures tell us the personal name of the Father—Jehovah. They inform us that the Son is Jesus Christ. But nowhere in the Scriptures is a personal name applied to the holy spirit.
Acts 7:55, 56 reports that Stephen was given a vision of heaven in which he saw “Jesus standing at God’s right hand.” But he made no mention of seeing the holy spirit. (See also Revelation 7:10; 22:1, 3.)
Bible study as well as various encyclopedias.