Contradiction with Matthew 5:44
Encourages showing kindness to enemies, while Isaiah 21:14 suggests providing for the fleeing people, possibly seen as enemies.
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 help even your enemy's stray animal, while Isaiah 21:14 focuses on aiding specific travelers.
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
Advises feeding your enemy if he is hungry, whereas Isaiah 21:14 centers on aiding the fleeing Dedanites, who may not be enemies.
Proverbs 25:21: If thine enemy be hungry, give him bread to eat; and if he be thirsty, give him water to drink: