Contradiction with Exodus 14:14
Contradicts by emphasizing that the Lord shall fight for you without the need for seeking or sending men to capture enemies, unlike in 2 Kings 6:13 where sending men is seen as necessary.
Exodus 14:14: The LORD shall fight for you, and ye shall hold your peace.
Contradiction with Matthew 5:44
Contradicts by teaching to love your enemies and pray for those who persecute you, differing from the intent to capture an enemy as seen in 2 Kings 6:13.
Matthew 5:44: But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;
Contradiction with Romans 12:19
Contradicts by advising not to seek vengeance but to leave room for God's wrath, whereas 2 Kings 6:13 involves seeking retribution through capture.
Romans 12:19: Dearly beloved, avenge not yourselves, but [rather] give place unto wrath: for it is written, Vengeance [is] mine; I will repay, saith the Lord.
Contradiction with Proverbs 16:7
Contradicts by stating that a man's enemies will be at peace with him when a man's ways please the Lord, opposed to actively seeking to capture an adversary as in 2 Kings 6:13.
Proverbs 16:7: When a man's ways please the LORD, he maketh even his enemies to be at peace with him.
Contradiction with 1 Peter 3:9
Contradicts by urging not to repay evil for evil or insult with insult, unlike the pursuit of the enemy for capture in 2 Kings 6:13.
1 Peter 3:9: Not rendering evil for evil, or railing for railing: but contrariwise blessing; knowing that ye are thereunto called, that ye should inherit a blessing.
Contradiction with Luke 6:27
Contradicts by commanding to love your enemies and do good to those who hate you, a teaching not followed in the pursuit of Elisha in 2 Kings 6:13.
Luke 6:27: But I say unto you which hear, Love your enemies, do good to them which hate you,