Contradiction with Proverbs 2:6
Ecclesiastes 12:9 emphasizes the wisdom of the preacher, whereas Proverbs 2:6 attributes all wisdom and knowledge directly to the Lord.
Proverbs 2:6: For the LORD giveth wisdom: out of his mouth [cometh] knowledge and understanding.
Contradiction with James 3:17
Ecclesiastes 12:9 highlights human wisdom, while James 3:17 describes wisdom from above as pure and peaceable, suggesting a divine origin.
James 3:17: But the wisdom that is from above is first pure, then peaceable, gentle, [and] easy to be intreated, full of mercy and good fruits, without partiality, and without hypocrisy. [partiality: or, wrangling]
Contradiction with 1 Corinthians 1:25
Ecclesiastes 12:9 speaks of the preacher's wisdom and knowledge, whereas 1 Corinthians 1:25 states that even the foolishness of God is wiser than men, implying human wisdom is inferior to divine wisdom.
1 Corinthians 1:25: Because the foolishness of God is wiser than men; and the weakness of God is stronger than men.
Contradiction with Jeremiah 8:9
Ecclesiastes 12:9 mentions the preacher as wise, but Jeremiah 8:9 says the wise men are ashamed because they have rejected the word of the Lord, contrasting human wisdom with divine truth.
Jeremiah 8:9: The wise [men] are ashamed, they are dismayed and taken: lo, they have rejected the word of the LORD; and what wisdom [is] in them? [The wise...: or, Have they been ashamed, etc] [what...: Heb. the wisdom of what thing]