Contradiction with Proverbs 24:17
This verse advises not to rejoice when your enemy falls, suggesting a different approach than mourning for adversaries.
Proverbs 24:17: Rejoice not when thine enemy falleth, and let not thine heart be glad when he stumbleth:
Contradiction with Matthew 5:44
Encourages loving your enemies and praying for them, which contrasts with mourning for them as lost brethren.
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 23:4-5
Instructs to assist your enemy, which is a proactive approach rather than passively mourning.
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 Romans 12:20
Advises feeding your enemy if he is hungry, suggesting concrete acts of kindness over mourning.
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.