Something that is openly admitted by theologians that is not known by many Christians is that the doctrine of the Trinity is not stated in the Bible, but is actually “built” by piecing together statements that are said to support it. Since most Christians believe the Trinity is a mystery and not to be understood is a huge reason why doctrinal discussions about it are often avoided or brushed aside and ignored. Worse, the teaching that the Trinity is a “mystery” has been used as a club to beat down doubters and dissenters, and those people are often branded as “heretics” and their role in Christianity minimized.
The word “Trinity” is not in the Bible, and that is supporting evidence that the doctrine is unbiblical, which may be why Trinitarians differ, sometimes greatly in their definitions of the Trinity. The Eastern Orthodox Church differs from the Western Church on the relation of the Holy Spirit to the Father and the Son. Trinitarians who hold to the “classic” definition of the Trinity say Jesus was 100% God and 100% man while on the earth believe differently from Kenotic Trinitarians who believe Jesus set aside his godhood while he was a man on the earth. Oneness Pentecostals say the classic formula of the Trinity is completely wrong, and yet all these claim that Christ is God and that the Bible supports their position.
A study of the history of the Christian Church shows a definite development in the doctrine of the Trinity over the centuries. For example, the early form of the Apostles Creed (believed to date back to shortly after the time of the apostles themselves) does not mention the Trinity or the dual nature of Christ. The Nicene Creed that was written in 325 AD and modified later added the material about Jesus Christ being “eternally begotten” and the "true God” and about the Holy Spirit being “Lord.” But it was the Athanasian Creed that was most likely composed in the latter part of the 4th century or possibly even as early as the 5th century that was the first creed to explicitly state the doctrine of the Trinity.
It seems it would have been clearly stated in the Bible and in the earliest Christian creeds if the doctrine of the Trinity was genuine and central to Christian belief and especially if belief in it was necessary for salvation as many Trinitarians teach. God gave the Scriptures to the Jewish people, and the Jewish religion and worship that comes from that revelation does not contain any reference to or teachings about a triune God. Surely the Jewish people were qualified to read and understand it, but they never saw the doctrine of the Trinity.
The word “Trinity” is not in the Bible, and that is supporting evidence that the doctrine is unbiblical, which may be why Trinitarians differ, sometimes greatly in their definitions of the Trinity. The Eastern Orthodox Church differs from the Western Church on the relation of the Holy Spirit to the Father and the Son. Trinitarians who hold to the “classic” definition of the Trinity say Jesus was 100% God and 100% man while on the earth believe differently from Kenotic Trinitarians who believe Jesus set aside his godhood while he was a man on the earth. Oneness Pentecostals say the classic formula of the Trinity is completely wrong, and yet all these claim that Christ is God and that the Bible supports their position.
A study of the history of the Christian Church shows a definite development in the doctrine of the Trinity over the centuries. For example, the early form of the Apostles Creed (believed to date back to shortly after the time of the apostles themselves) does not mention the Trinity or the dual nature of Christ. The Nicene Creed that was written in 325 AD and modified later added the material about Jesus Christ being “eternally begotten” and the "true God” and about the Holy Spirit being “Lord.” But it was the Athanasian Creed that was most likely composed in the latter part of the 4th century or possibly even as early as the 5th century that was the first creed to explicitly state the doctrine of the Trinity.
It seems it would have been clearly stated in the Bible and in the earliest Christian creeds if the doctrine of the Trinity was genuine and central to Christian belief and especially if belief in it was necessary for salvation as many Trinitarians teach. God gave the Scriptures to the Jewish people, and the Jewish religion and worship that comes from that revelation does not contain any reference to or teachings about a triune God. Surely the Jewish people were qualified to read and understand it, but they never saw the doctrine of the Trinity.