Contradiction with Acts 4:13
Acts 4:13 describes Peter and John as unlearned and ignorant men, which contrasts with Acts 22:3 where Paul describes himself as highly educated, having been taught by Gamaliel according to the perfect manner of the law.
Acts 4:13: Now when they saw the boldness of Peter and John, and perceived that they were unlearned and ignorant men, they marvelled; and they took knowledge of them, that they had been with Jesus.
Contradiction with 1 Corinthians 2:1-2
In 1 Corinthians 2:1-2, Paul says he did not come with excellency of speech or wisdom, while in Acts 22:3 he emphasizes his education under Gamaliel and knowledge of Jewish law.
1 Corinthians 2:1-2: And I, brethren, when I came to you, came not with excellency of speech or of wisdom, declaring unto you the testimony of God.
Contradiction with Philippians 3:7-8
Philippians 3:7-8 expresses Paul's view that his previous achievements and education, like what is mentioned in Acts 22:3, are now considered loss for the sake of Christ, showing a shift in value.
Philippians 3:7-8: But what things were gain to me, those I counted loss for Christ.
Contradiction with Galatians 1:11-12
Galatians 1:11-12 states that the gospel Paul preached was not taught by man, though Acts 22:3 highlights his education under a human teacher, Gamaliel.
Galatians 1:11-12: But I certify you, brethren, that the gospel which was preached of me is not after man.