Contradiction with Acts 18:3
Paul engages in tent-making to support himself, while 2 Corinthians 11:9 indicates the support from other churches.
Acts 18:3: And because he was of the same craft, he abode with them, and wrought: for by their occupation they were tentmakers.
Contradiction with Philippians 4:15-16
Paul acknowledges receiving gifts from the Philippians, suggesting reliance on their support, in contrast to 2 Corinthians 11:9 which emphasizes not being burdensome to the Corinthians.
Philippians 4:15-16: Now ye Philippians know also, that in the beginning of the gospel, when I departed from Macedonia, no church communicated with me as concerning giving and receiving, but ye only.
Contradiction with 1 Corinthians 9:14
Paul argues for the right of apostles to earn their living from the gospel, seemingly at odds with his stance in 2 Corinthians 11:9 against receiving support.
1 Corinthians 9:14: Even so hath the Lord ordained that they which preach the gospel should live of the gospel.