Contradiction with James 1:20
James 1:20 suggests that the wrath of man does not produce the righteousness of God, contrasting the call for punitive justice in Judges 20:10.
James 1:20: For the wrath of man worketh not the righteousness of God.
Contradiction with Matthew 5:44
Matthew 5:44 advocates for love and prayer for enemies, contradicting the organized retribution in Judges 20:10.
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
Romans 12:19 advises against seeking personal vengeance, leaving it to God's wrath, opposing the directive for human judgment in Judges 20:10.
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 20:22
Proverbs 20:22 advises against repaying evil, urging instead to wait for the Lord's deliverance, which conflicts with the immediate action called for in Judges 20:10.
Proverbs 20:22: Say not thou, I will recompense evil; [but] wait on the LORD, and he shall save thee.
Contradiction with Matthew 7:1
Matthew 7:1 warns against judging others to avoid being judged, which stands in contrast to the judgment enacted in Judges 20:10.
Matthew 7:1: Judge not, that ye be not judged.
Contradiction with 1 Thessalonians 5:15
1 Thessalonians 5:15 urges believers to not repay evil for evil, but to seek good, contrary to the retributive measure in Judges 20:10.
1 Thessalonians 5:15: See that none render evil for evil unto any [man]; but ever follow that which is good, both among yourselves, and to all [men].