Contradiction with Matthew 5:44
1 Chronicles 19:14 describes engaging in battle, while Matthew 5:44 encourages loving your enemies and blessing those who curse 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 Exodus 20:13
1 Chronicles 19:14 involves fighting, whereas Exodus 20:13 instructs "Thou shalt not kill," promoting non-violence.
Exodus 20:13: Thou shalt not kill.
Contradiction with Romans 12:19
Romans 12:19 instructs not to seek vengeance but leave wrath to God, in contrast to the combat depicted in 1 Chronicles 19:14.
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
This verse advises against repaying evil with evil, which contradicts the battle action in 1 Chronicles 19:14.
Proverbs 20:22: Say not thou, I will recompense evil; [but] wait on the LORD, and he shall save thee.
Contradiction with Luke 6:27
Luke 6:27 recommends loving your enemies and doing good to those who hate you, in opposition to the context of warfare in 1 Chronicles 19:14.
Luke 6:27: But I say unto you which hear, Love your enemies, do good to them which hate you,