Contradiction with Matthew 6:15
Judges 21:5 talks about punishment for not keeping an oath, while Matthew 6:15 emphasizes forgiveness and not holding transgressions against people.
Matthew 6:15: But if ye forgive not men their trespasses, neither will your Father forgive your trespasses.
Contradiction with Romans 12:17
Judges 21:5 implies retribution for an oath broken, whereas Romans 12:17 advises against repaying evil for evil, promoting peace instead.
Romans 12:17: Recompense to no man evil for evil. Provide things honest in the sight of all men.
Contradiction with Matthew 5:44
Judges 21:5 involves punishing those who didn't come to the assembly, in tension with Matthew 5:44 which instructs to love your enemies and pray for those who persecute you.
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 Luke 6:36
Judges 21:5 concerns retribution, conflicting with Luke 6:36's directive to be merciful just as the Father is merciful.
Luke 6:36: Be ye therefore merciful, as your Father also is merciful.
Contradiction with James 2:13
Judges 21:5 deals with strict punishment, contrasting with James 2:13 which states that mercy triumphs over judgment.
James 2:13: For he shall have judgment without mercy, that hath shewed no mercy; and mercy rejoiceth against judgment. [rejoiceth: or, glorieth]
Paradox #1
The moral conflict in the context of Judges 21:5 could be the harshness of enforcing a curse on those who did not join the assembly, which might seem inconsistent with principles of mercy and forgiveness. The action taken against the absent tribesmen might contradict the idea of community and understanding.