Contradiction with 1 Corinthians 2:14
This verse suggests that spiritual truths are not easily understood or accepted by natural man, whereas Proverbs 8:9 implies that understanding and knowledge are plain to those with insight.
1 Corinthians 2:14: But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know [them], because they are spiritually discerned.
Contradiction with Isaiah 55:8-9
These verses emphasize that God's thoughts and ways are higher than human understanding, which contradicts the notion in Proverbs 8:9 that wisdom and understanding are straightforward to the discerning.
Isaiah 55:8-9: For my thoughts [are] not your thoughts, neither [are] your ways my ways, saith the LORD.
Contradiction with Ecclesiastes 7:24
This verse implies that wisdom and knowledge are difficult to find, conflicting with Proverbs 8:9, which suggests that they are plain and clear to those who seek them.
Ecclesiastes 7:24: That which is far off, and exceeding deep, who can find it out?
Contradiction with Matthew 13:13
This verse suggests that some people will see and hear but not understand, contradicting the idea in Proverbs 8:9 that insight makes understanding plain.
Matthew 13:13: Therefore speak I to them in parables: because they seeing see not; and hearing they hear not, neither do they understand.