Contradiction with Matthew 7:1
This verse advises not to judge others, which could contradict the notion of boasting within limits, as implied in 2 Corinthians 10:13.
Matthew 7:1: Judge not, that ye be not judged.
Contradiction with Proverbs 27:2
It suggests that one should let others praise them and not boast themselves, contrasting Paul's claim of boasting within boundaries.
Proverbs 27:2: Let another man praise thee, and not thine own mouth; a stranger, and not thine own lips.
Contradiction with Jeremiah 9:23
Advises against boasting in wisdom, might, or riches, conflicting with any form of boasting, even if within limits.
Jeremiah 9:23: Thus saith the LORD, Let not the wise [man] glory in his wisdom, neither let the mighty [man] glory in his might, let not the rich [man] glory in his riches:
Contradiction with Galatians 6:4
Encourages each to test their own actions and take pride in themselves alone, while 2 Corinthians 10:13 implies boasting within certain areas might be acceptable.
Galatians 6:4: But let every man prove his own work, and then shall he have rejoicing in himself alone, and not in another.