Contradiction with Matthew 5:44
While Psalms 18:40 speaks about defeating enemies, Matthew 5:44 instructs to love and pray for one's 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 Romans 12:20
Psalms 18:40 mentions subduing enemies, whereas Romans 12:20 encourages feeding and providing for them.
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 Proverbs 25:21
The Psalm talks about placing adversaries underfoot, but Proverbs 25:21 advises giving them food and drink.
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 Luke 6:27
Where Psalms 18:40 suggests triumph over foes, Luke 6:27 urges doing good to those who hate you.
Luke 6:27: But I say unto you which hear, Love your enemies, do good to them which hate you,
Contradiction with Exodus 23:4-5
The Psalm speaks of overcoming opponents, yet Exodus 23:4-5 emphasizes returning a lost animal to your enemies.
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 1 Thessalonians 5:15
Psalms 18:40 focuses on overpowering adversaries; 1 Thessalonians 5:15 advises not to repay evil for evil but to pursue good.
1 Thessalonians 5:15: See that none render evil for evil unto any [man]; but ever follow that which is good, both among yourselves, and to all [men].
Contradiction with 1 Peter 3:9
Where Psalms 18:40 is about subduing enemies, 1 Peter 3:9 teaches not to retaliate but to bless instead.
1 Peter 3:9: Not rendering evil for evil, or railing for railing: but contrariwise blessing; knowing that ye are thereunto called, that ye should inherit a blessing.
Paradox #1
The contradiction or conflict in Psalms 18:40 could arise from the portrayal of hostility or violence towards enemies, which might conflict with teachings about love, forgiveness, and compassion found in other parts of the Bible. This tension between seeking justice or victory over adversaries and promoting peace and forgiveness can lead to moral questions about how to treat those perceived as enemies.