There are many Trinitarian doctrine contradictions in the New Testament. Dr. David K. Bernard, in his book, The Oneness of God, listed twenty six of the contradictions and problems of the doctrine. Here they are:
"1. Did Jesus Christ have two fathers? The Father is the Father of the Son (I John 1:3), yet the child born of Mary was conceived by the Holy Ghost (Matthew 1:18, 20; Luke 1:35). Which one is the true father? Some trinitarians say that the Holy Ghost was merely the Father’s agent in conception—a process they compare to artificial insemination!1
2. How many Spirits are there? God the Father is a Spirit (John 4:24), the Lord Jesus is a Spirit (II Corinthians 3:17), and the Holy Spirit is a Spirit by definition. Yet there is one Spirit (I Corinthians 12:13; Ephesians 4:4).
3. If Father and Son are co-equal persons, why did Jesus pray to the Father? (Matthew 11:25). Can God pray to God?
4. Similarly, how can the Son not know as much as the Father? (Matthew 24:36; Mark 13:32).
5. Similarly, how can the Son not have any power except what the Father gives Him? (John 5:19,30; 6:38).
6. Similarly, what about other verses of Scripture indicating the inequality of the Son and the Father? (John 8:42; 14:28; I Corinthians 11:3).
7. Did “God the Son” die? The Bible says the Son died (Romans 5:10). If so, can God die? Can part of God die?
8. How can there be an eternal Son when the Bible speaks of the begotten Son, clearly indicating that the Son had a beginning? (John 3:16; Hebrews 1:5-6).
9. If the Son is eternal and existed at creation, who was His mother at that time? We know the Son was made of a woman (Galatians 4:4).
10. Did “God the Son” surrender His omnipresence while on earth? If so, how could He still be God?
11. If the Son is eternal and immutable (unchangeable), how can the reign of the Son have an ending? (I Corinthians 15:24-28).
12. If in answer to questions 3 through 11 we say only the human Son of God was limited in knowledge, was limited in power, and died, then how can we speak of “God the Son”? Are there two Sons?
13. Whom do we worship and to whom do we pray? Jesus said to worship the Father (John 4:21-24), yet Stephen prayed to Jesus (Acts 7:59-60).
14. Can there be more than three persons in the Godhead? Certainly the Old Testament does not teach three but emphasizes oneness. If the New Testament adds to the Old Testament message and teaches three persons, then what is to prevent subsequent revelations of additional persons? If we apply trinitarian logic to interpret some verses of Scripture, we could teach a fourth person (Isaiah 48:16; Colossians 1:3; 2:2; I Thessalonians 3:11; James 1:27). Likewise, we could interpret some verses of Scripture to mean six more persons (Revelation 3:1; 5:6).
15. Are there three Spirits in a Christian’s heart? Father, Jesus, and the Spirit all dwell within a Christian (John 14:17, 23; Romans 8:9; Ephesians 3:14-17). Yet there is one Spirit (I Corinthians 12:13; Ephesians 4:4).
16. There is only one throne in heaven (Revelation 4:2). Who sits upon it? We know Jesus does (Revelation 1:8, 18, 4:8). Where do the Father and the Holy Spirit sit?
17. If Jesus is on the throne, how can He sit on the right hand of God? (Mark 16:19). Does He sit or stand on the right hand of God? (Acts 7:55). Or is He in the Father’s bosom? (John 1:18).
18. Is Jesus in the Godhead or is the Godhead in Jesus? Colossians 2:9 says the latter.
19. Given Matthew 28:19, why did the apostles consistently baptize both Jews and Gentiles using the name of Jesus, even to the extent of rebaptism? (Acts 2:38; 8:16; 10:48; 19:5; 22:16; I Corinthians 1:13).
20. Who raised Jesus from the dead? Did the Father (Ephesians 1:20), or Jesus (John 2:19-21), or the Spirit? (Romans 8: 11).
21. If Son and Holy Ghost are co-equal persons in the Godhead, why is blasphemy of the Holy Ghost unforgivable but blasphemy of the Son is not? (Luke 12:10).
22. If the Holy Ghost is a co-equal member of the trinity, why does the Bible always speak of Him being sent from the Father or from Jesus? (John 14:26; 15:26).
23. Does the Father know something that the Holy Spirit does not know? If so, how can they be co-equal? Only the Father knows the day and hour of the second coming of Christ (Mark 13:32).
24. Did the trinity make the Old and New covenants? We know the LORD (Jehovah) did (Jeremiah 31:31-34; Hebrews 8:7-13). If Jehovah is a trinity then Father, Son, and Spirit all had to die to make the new covenant effective (Hebrews 9:16-17).
25. If the Spirit proceeds from the Father, is the Spirit also a son of the Father? If not, why not?
26. If the Spirit proceeds from the Son, is the Spirit the grandson of the Father? If not, why not?"[Bernard, David K. The Oneness of God. Hazelwood, MO.: Word Aflame Press, 1983, p. 290-293]
1 Brumback, Carl. God in Three Persons. Cleveland Tenn.: Pathway Press, 1959, p. 79
If you are reading this page, Trinitarian Doctrine Contradictions, and are troubled because you don't have any answers except the one Trinitarian priests, pastors, reverends and ministers use "The Godhead is a mystery and we must accept by faith this mystery", don't be shocked. But instead, I implore you to read the entire New Testament, keeping in mind what Dr. Bernard wrote as well:
"The Godhead is no mystery, especially to the church. We cannot understand everything there is to know about God, but the Bible clearly teaches that God is one in number and that Jesus Christ is the one God manifest in flesh." [Bernard, David K. The Oneness of God. Hazelwood, MO.: Word Aflame Press, 1983, p. 296]. (Go here to purchase the Oneness of God by Dr. David K. Bernard.)
After you have done this, I ask you to consider your options. The only reason I wrote this page is to help the lost get to heaven. If you don't believe that Jesus Is God, you most likely will never submit to obeying the Gospel of Jesus Christ, by obeying Acts 2:38. When the lost do not obey the Gospel, this is what happens:
And to you who are troubled rest with us, when the Lord Jesus shall be revealed from heaven with his mighty angels, In flaming fire taking vengeance on them that know not God, and that obey not the gospel of our Lord Jesus Christ (2 Thessalonians 1:7-8).
As Jesus says: He that hath ears to hear, let him hear (Matthew 11:15).