Contradiction with James 1:5
James 1:5 encourages seeking wisdom from God, implying wisdom is not solely inherited from ancestors as suggested in Job 15:18.
James 1:5: If any of you lack wisdom, let him ask of God, that giveth to all [men] liberally, and upbraideth not; and it shall be given him.
Contradiction with Job 42:7
After Job’s trials, God states that Job’s friends, including Eliphaz, who spoke in Job 15:18, did not speak what was right, contradicting their assertions of wisdom.
Job 42:7: And it was [so], that after the LORD had spoken these words unto Job, the LORD said to Eliphaz the Temanite, My wrath is kindled against thee, and against thy two friends: for ye have not spoken of me [the thing that is] right, as my servant Job [hath].
Contradiction with Matthew 11:25
Jesus thanks the Father for hiding things from the wise and prudent, contradicting the notion that wisdom is purely from the wise, as implied in Job 15:18.
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.