Contradiction with Romans 12:19
Encourages Christians not to seek revenge but leave it to God's wrath, whereas Judges 18:26 involves an act of taking vengeance into one's own hands.
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 Matthew 5:39
Teaches to turn the other cheek instead of resisting evil, contradicting the pursuit of violence in Judges 18:26.
Matthew 5:39: But I say unto you, That ye resist not evil: but whosoever shall smite thee on thy right cheek, turn to him the other also.
Contradiction with Proverbs 15:1
Advocates for a soft answer to turn away wrath, contrary to the aggressive actions taken in Judges 18:26.
Proverbs 15:1: A soft answer turneth away wrath: but grievous words stir up anger.
Contradiction with 1 Peter 3:9
Advises not to repay evil with evil or insult with insult, which is opposite to the conduct in Judges 18:26.
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
Commands to love your enemies, conflicting with the violent retribution exemplified in Judges 18:26.
Luke 6:27: But I say unto you which hear, Love your enemies, do good to them which hate you,