Contradiction with Proverbs 25:26
This verse speaks of a righteous person like a muddied spring if they yield to the wicked, contradicting Abner's seeming righteousness in visiting David.
Proverbs 25:26: A righteous man falling down before the wicked [is as] a troubled fountain, and a corrupt spring.
Contradiction with Matthew 10:16
Advises being wise as serpents and harmless as doves, contradicting Abner's potentially deceptive actions in meeting David.
Matthew 10:16: Behold, I send you forth as sheep in the midst of wolves: be ye therefore wise as serpents, and harmless as doves. [harmless: or, simple]
Contradiction with Jeremiah 9:8
Describes words smoother than butter with war in heart, contradicting Abner's peaceful visit to David in the context of underlying conflict.
Jeremiah 9:8: Their tongue [is as] an arrow shot out; it speaketh deceit: [one] speaketh peaceably to his neighbour with his mouth, but in heart he layeth his wait. [in heart: Heb. in the midst of him] [his wait: or, wait for him]
Contradiction with James 4:4
States friendship with the world is enmity with God, contradicting forming alliances such as Abner's with David.
James 4:4: Ye adulterers and adulteresses, know ye not that the friendship of the world is enmity with God? whosoever therefore will be a friend of the world is the enemy of God.
Contradiction with 2 Corinthians 6:14
Advises not being unequally yoked with unbelievers, contradicting David accepting a feast with Abner, a former adversary.
2 Corinthians 6:14: Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?