But we do and it was discussed in detail at the Council of Nicaea and found to be heresy.
By the formulation of a triune God dogma, in effect, was a denial of the only true God that Jesus proclaimed as his God. (John 17:1,3; 20:17; Revelation 3:12) The council of men, in effect, gave fuel to the night of darkness in which the light of truth (John 3:21) was suppressed. – John 9:4; 12:35
Again, please be more specific. What are the “added-on doctrines of man” of which you speak.
To name of few of the greatest ones: the triune God dogma (which effectually would have Jesus to have been God Almighty in the flesh, thereby denying the effectiveness of the scripture that Jesus
condemned sin in the flesh – Romans 8:3), the
inherit immortality dogma (which would effectually deny the need of Jesus’
coming in the flesh to offer that flesh in sacrifice for the dying world), the dead are conscious dogma (usually claimed that the soul or spirit is alive and conscious while the body is dead which also would deny the need of the sacrifice of Jesus), I could list more. Nevertheles, unless one actually takes the time to understand how these doctrines deny the purpose of Jesus’ coming the flesh , one will still remain in relative darkness caused by acceptance of such doctrines of men. – 1 John 4:2,3.
I believe, as testified in the Bible, that God has revealed his truths by means of his holy spirit through the apostles. He Who is the God of Abraham, Isaac, and Jacob, the God and Father of Jesus, by means of His holy spirit, especially led the apostles into all the truths concerning Christ and what he said, and thereby the faith was delivered to the saints in the first century. – John 14:26; 16:4-13; Galatians 1:12; Ephesians 3:5; 2 Timothy 2:2; Jude 1:3.
Today, we have the truths revealed in the first centuryf in the writings of the Bible. (Ephesians 3:3-12; Colossians 1:25,26; 1 John 4:6) Of course, without the holy spirit, these things that are recorded will still be a mystery to us. — Mark 4:11; 1 Corinthians 2:7-10.
It that revealing, we find that it is foretold that there was to be an apostasy, a “falling away” from the truth of God’s Word, with strong delusions. – Matthew 13:24-30; Acts 20:29,30; 2 Thessalonians 2:1-12; 1 Timothy 4:1-3; 2 Timothy 4:3,4.
We find also in that revealing that such a falling away had already begun in the first century, with some receiving a different spirit and preaching “another Jesus”; the apostasy was restrained for only a short while. – 2 Thessalonians 2:7; 1 John 2:18,19; 2 Corinthians 11:4.
After the death of the apostles, the apostasy spread rapidly leading to the development of the the great “Man of Sin”, or more correctly “Insubordinate Man,” “Lawless Man”, or “Illegal Man”, a great religious system, which claimed to have the authority to add to God’s Word since their revelation was allegedly of God’s Spirit, and these revelations were claimed, in effect, to add more to the faith that scriptures say had once delivered to the saints. – Jude 1:3.
The redemption as revealed to saints in the first centry became replaced with the doctrine that Jesus had to be God Almighty in order to provide atonement for sins. Having established this spirit of error, the writings of the apostles had to be totally reinterpreted by means of the spirit of human imagination and assumptions so as to accommodate the error, and many of the Hellenic Jewish philosophies were adapted and added to and blended in with the New Testament, even as the Jews had done with the Old Testament.
Isaiah, in prophesying concerning the stone of stumbling (Isaiah 8:14; Romans 9:23) to both the houses of Israel (Romans 9:6,31; 11:7; 1 Corinthians 10:18; Galatians 6:16), warns us: “To the law and to the testimony! If they do not speak according to this word, it is because there is no light in them [the dawn is not in them].” – Isaiah 8:20, New King James Version.
The “law”, of course, is what we call the Old Testament; the “testimony” of this prophecy is the testimony of the apostles, as given in the New Testament. This the way to test the spirits. (1 John 4:1) It is to these and through these scriptures that the holy spirit today gives true direction, and anything not in agreement with these scriptures is not of the light of the day. (John 11:9; 1 Thessalonians 5:5) In effect, any spirit that does not testify in agreement with what has been revealed is not of the light of new day.
The distortion of who Jesus truly was and is — who while on earth before his death was only human, a little lower than the angels, who gave his flesh for the life of the world — is one of the greatest stumblingblocks to understanding the true Gospel revealed in scripture. Thus Jesus becomes a stumbling stone, not only to the house according the flesh which was corrupted from true doctrine (Israel after the flesh — Luke 13:25-28; Romans 9:30-33), but also the house which claims Jesus, which has also become corrupted from true doctrine. — Matthew 27:21-23; Revelation 2:13-15,20-24.