Contradiction with Proverbs 16:3
Acts 20:3 mentions Paul changing his plans due to a plot, whereas Proverbs 16:3 suggests committing actions to God establishes plans.
Proverbs 16:3: Commit thy works unto the LORD, and thy thoughts shall be established. [Commit: Heb. Roll]
Contradiction with Jeremiah 29:11
Acts 20:3 demonstrates Paul's plans being thwarted, while Jeremiah 29:11 speaks of God having plans for prosperity and safety.
Jeremiah 29:11: For I know the thoughts that I think toward you, saith the LORD, thoughts of peace, and not of evil, to give you an expected end. [expected...: Heb. end and expectation]
Contradiction with James 4:13-15
Acts 20:3 involves Paul's travel plans, but James 4:13-15 advises that one should say "if the Lord wills" rather than assume plans will succeed.
James 4:13-15: Go to now, ye that say, To day or to morrow we will go into such a city, and continue there a year, and buy and sell, and get gain:
Contradiction with Proverbs 19:21
Acts 20:3 shows Paul's plans altered by human plotting, while Proverbs 19:21 emphasizes that the Lord's purpose ultimately prevails over human plans.
Proverbs 19:21: [There are] many devices in a man's heart; nevertheless the counsel of the LORD, that shall stand.
Contradiction with Isaiah 55:8-9
Acts 20:3 depicts Paul's intentions being changed by circumstances, contrasting Isaiah 55:8-9 where God's thoughts and ways are higher than man's.
Isaiah 55:8-9: For my thoughts [are] not your thoughts, neither [are] your ways my ways, saith the LORD.