Contradiction with Proverbs 3:5
Trust in the Lord with all your heart and lean not on your own understanding, while Acts 26:25 is a statement about personal sanity and truth.
Proverbs 3:5: Trust in the LORD with all thine heart; and lean not unto thine own understanding.
Contradiction with 1 Corinthians 1:18
For the preaching of the cross is to them that perish foolishness, but unto us which are saved it is the power of God, contrasting with the notion of sober truth in personal defense in Acts 26:25.
1 Corinthians 1:18: For the preaching of the cross is to them that perish foolishness; but unto us which are saved it is the power of God.
Contradiction with Matthew 11:25
Thou hast hid these things from the wise and prudent, and hast revealed them unto babes, which contradicts the idea of asserting sober truthfulness before authorities in Acts 26:25.
Matthew 11:25: At that time Jesus answered and said, I thank thee, O Father, Lord of heaven and earth, because thou hast hid these things from the wise and prudent, and hast revealed them unto babes.