Contradiction with Matthew 5:44
Contradicts as it teaches to love and do good to enemies, whereas 2 Samuel 9:10 involves providing provisions for potential rival.
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 Proverbs 25:21
Advises feeding an enemy out of kindness, contrasting with strategic alliances in 2 Samuel 9:10.
Proverbs 25:21: If thine enemy be hungry, give him bread to eat; and if he be thirsty, give him water to drink:
Contradiction with Romans 12:20
Encourages kindness to enemies as an act of goodness, unlike the obligatory duty in 2 Samuel 9:10.
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.
Contradiction with Luke 6:35
Advocates lending and doing good without expecting return to all, opposing the specific beneficiary action in 2 Samuel 9:10.
Luke 6:35: But love ye your enemies, and do good, and lend, hoping for nothing again; and your reward shall be great, and ye shall be the children of the Highest: for he is kind unto the unthankful and [to] the evil.