Contradiction with Matthew 5:9
This verse speaks of peacemakers being blessed, which contradicts the siege and warfare depicted in 2 Samuel 20:15.
Matthew 5:9: Blessed [are] the peacemakers: for they shall be called the children of God.
Contradiction with Isaiah 2:4
This verse describes a future without war, opposing the ongoing battle in 2 Samuel 20:15.
Isaiah 2:4: And he shall judge among the nations, and shall rebuke many people: and they shall beat their swords into plowshares, and their spears into pruninghooks: nation shall not lift up sword against nation, neither shall they learn war any more. [pruninghooks: or, scythes]
Contradiction with James 3:18
Advocates for peace, contrary to the conflict in 2 Samuel 20:15.
James 3:18: And the fruit of righteousness is sown in peace of them that make peace.
Contradiction with Psalm 46:9
Speaks of God ending wars, in conflict with the warring actions in 2 Samuel 20:15.
Psalm 46:9: He maketh wars to cease unto the end of the earth; he breaketh the bow, and cutteth the spear in sunder; he burneth the chariot in the fire.
Contradiction with Romans 12:18
Encourages living peacefully, opposing the siege actions in 2 Samuel 20:15.
Romans 12:18: If it be possible, as much as lieth in you, live peaceably with all men.