Contradiction with Proverbs 24:17
This verse advises not to rejoice when an enemy falls, which contrasts with the lamentation over Abner's death, an enemy of David's kingdom.
Proverbs 24:17: Rejoice not when thine enemy falleth, and let not thine heart be glad when he stumbleth:
Contradiction with Exodus 23:4-5
These verses instruct aiding an enemy in distress, which can be seen as contradictory to expressing sorrow over their death.
Exodus 23:4-5: If thou meet thine enemy's ox or his ass going astray, thou shalt surely bring it back to him again.
Contradiction with Proverbs 25:21-22
Encouraging kindness to one's enemy contrasts with mourning for intervention in their demise.
Proverbs 25:21-22: If thine enemy be hungry, give him bread to eat; and if he be thirsty, give him water to drink:
Contradiction with Matthew 5:44
Jesus’s teaching to love enemies contrasts with lamenting their death, highlighting active love rather than mourning.
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 12:20
Advises feeding an enemy, contradicting mourning at their death without prior mercy.
Romans 12:20: Therefore if thine enemy hunger, feed him; if he thirst, give him drink: for in so doing thou shalt heap coals of fire on his head.