Contradiction with Matthew 5:9
1 Kings 14:30 describes constant war, while Matthew 5:9 blesses peacemakers, implying peace is a virtue.
Matthew 5:9: Blessed [are] the peacemakers: for they shall be called the children of God.
Contradiction with Romans 12:18
1 Kings 14:30 notes ongoing conflict, whereas Romans 12:18 encourages living peaceably with all.
Romans 12:18: If it be possible, as much as lieth in you, live peaceably with all men.
Contradiction with James 3:18
The verse in 1 Kings 14:30 highlights war, while James 3:18 emphasizes the fruit of righteousness sown in peace by peacemakers.
James 3:18: And the fruit of righteousness is sown in peace of them that make peace.