Contradiction with Matthew 5:44
Joel 3:12 calls for judgment upon the nations, whereas Matthew 5:44 teaches to love enemies and pray for those who persecute you, promoting peace and reconciliation.
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 6:37
Joel 3:12 speaks of judgment, while Luke 6:37 advises against judging and condemning others, emphasizing forgiveness instead.
Luke 6:37: Judge not, and ye shall not be judged: condemn not, and ye shall not be condemned: forgive, and ye shall be forgiven:
Contradiction with Romans 12:19
Joel 3:12 involves executing judgment, contrasting with Romans 12:19, which instructs believers to leave vengeance to God and not to repay evil for evil.
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 James 4:12
Joel 3:12 supports divine judgment, while James 4:12 warns humans against judging one another, affirming God as the only lawgiver and judge.
James 4:12: There is one lawgiver, who is able to save and to destroy: who art thou that judgest another?