Contradiction with Proverbs 20:5
This verse suggests that a person's thoughts are deep waters and requires skill to draw them out, implying that understanding human hearts is not straightforward.
Proverbs 20:5: Counsel in the heart of man [is like] deep water; but a man of understanding will draw it out.
Contradiction with 1 Samuel 16:7
God tells Samuel that He looks at the heart, suggesting that it's not easy for humans to know the hearts of others, seemingly contradicting the implication that Jesus knew what was in man.
1 Samuel 16:7: But the LORD said unto Samuel, Look not on his countenance, or on the height of his stature; because I have refused him: for [the LORD seeth] not as man seeth; for man looketh on the outward appearance, but the LORD looketh on the heart. [outward...: Heb. eyes]
Contradiction with Jeremiah 17:9
This verse states that the heart is deceitful above all things and desperately wicked, making it impossible for humans to fully know it.
Jeremiah 17:9: The heart [is] deceitful above all [things], and desperately wicked: who can know it?