Contradiction with Exodus 20:13
This verse commands "Thou shalt not kill," contradicting the actions taken in 1 Kings 2:29 where Joab is executed.
Exodus 20:13: Thou shalt not kill.
Contradiction with Matthew 5:44
Jesus teaches "Love your enemies," contrasting with the retributive justice seen in 1 Kings 2:29 where Solomon orders Joab's death.
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
"Vengeance is mine; I will repay, saith the Lord," opposes the human-administered retribution in 1 Kings 2:29.
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 24:17-18
Advises not to rejoice when your enemy falls, which contrasts with Solomon's actions in punishing Joab in 1 Kings 2:29.
Proverbs 24:17-18: Rejoice not when thine enemy falleth, and let not thine heart be glad when he stumbleth:
Contradiction with John 8:7
"He that is without sin among you, let him first cast a stone," which provides a message of self-reflection and mercy, opposing the execution of Joab.
John 8:7: So when they continued asking him, he lifted up himself, and said unto them, He that is without sin among you, let him first cast a stone at her.
Contradiction with James 2:13
"For he shall have judgment without mercy, that hath shewed no mercy; and mercy rejoiceth against judgment," emphasizing mercy over judgment, contradicting the unmerciful punishment of Joab.
James 2:13: For he shall have judgment without mercy, that hath shewed no mercy; and mercy rejoiceth against judgment. [rejoiceth: or, glorieth]