Contradiction with 1 Samuel 15:11
This verse describes God's regret for making Saul king, questioning the ideal of perfect justice in leadership as described in 2 Samuel 8:15.
1 Samuel 15:11: It repenteth me that I have set up Saul [to be] king: for he is turned back from following me, and hath not performed my commandments. And it grieved Samuel; and he cried unto the LORD all night.
Contradiction with Ecclesiastes 7:20
This verse states there is not a just man on earth who does good and sins not, implying a contradiction to David's just reign in 2 Samuel 8:15.
Ecclesiastes 7:20: For [there is] not a just man upon earth, that doeth good, and sinneth not.
Contradiction with Romans 3:10
This verse states that none are righteous, no, not one, which challenges the depiction of David ruling in righteousness in 2 Samuel 8:15.
Romans 3:10: As it is written, There is none righteous, no, not one:
Contradiction with Jeremiah 17:9
The verse suggests the heart is deceitful above all things, contrasting with the notion of consistently just and righteous leadership found in 2 Samuel 8:15.
Jeremiah 17:9: The heart [is] deceitful above all [things], and desperately wicked: who can know it?
Contradiction with Psalm 14:3
This verse states that all have turned aside and become corrupt, conflicting with the portrayal of justice and righteousness in 2 Samuel 8:15.
Psalm 14:3: They are all gone aside, they are [all] together become filthy: [there is] none that doeth good, no, not one. [filthy: Heb. stinking]