Contradiction with Ecclesiastes 7:20
This verse states that there is not a just man upon earth, which contradicts the description of David as behaving wisely in all his ways.
Ecclesiastes 7:20: For [there is] not a just man upon earth, that doeth good, and sinneth not.
Contradiction with Romans 3:23
This verse states that all have sinned and come short of the glory of God, contrasting the portrayal of David as wise and seemingly without fault in 1 Samuel 18:14.
Romans 3:23: For all have sinned, and come short of the glory of God;
Contradiction with Mark 10:18
This verse states that no one is good except God alone, suggesting a contradiction with the implied goodness and wisdom of David in 1 Samuel 18:14.
Mark 10:18: And Jesus said unto him, Why callest thou me good? [there is] none good but one, [that is], God.
Contradiction with Jeremiah 17:9
This verse claims that the heart is deceitful and desperately wicked, contrasting with the characterization of David's wisdom and behavior in 1 Samuel 18:14.
Jeremiah 17:9: The heart [is] deceitful above all [things], and desperately wicked: who can know it?