Contradiction with Matthew 5:44
This verse encourages loving enemies and praying for those who persecute you, which contradicts the violent imagery in Psalms 18:42.
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 12:19
This verse advises against taking vengeance, leaving it to God, unlike Psalms 18:42 which depicts personal vengeance.
Romans 12:19: Dearly beloved, avenge not yourselves, but [rather] give place unto wrath: for it is written, Vengeance [is] mine; I will repay, saith the Lord.
Contradiction with Proverbs 24:17
This verse advises not to rejoice when your enemy falls, in contrast to the triumph over enemies depicted in Psalms 18:42.
Proverbs 24:17: Rejoice not when thine enemy falleth, and let not thine heart be glad when he stumbleth:
Contradiction with Luke 6:27-28
These verses call for loving your enemies and doing good to those who hate you, directly opposing the destruction of enemies in Psalms 18:42.
Luke 6:27-28: But I say unto you which hear, Love your enemies, do good to them which hate you,
Contradiction with Proverbs 25:21-22
Suggests feeding your enemy if he is hungry, differing from the violent defeat of enemies in Psalms 18:42.
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 1 Peter 3:9
Instructs not to repay evil for evil, which contradicts the retaliatory action in Psalms 18:42.
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
Psalms 18:42 talks about vanquishing enemies in a very graphic way. Some people might see a contradiction between this and the teachings of love and forgiveness found in other parts of the Bible, like the teachings of Jesus about loving your enemies and turning the other cheek. This might seem inconsistent with a message of peace and compassion.
Paradox #2
Psalms 18:42 speaks about defeating and crushing enemies, which can be seen as a contradiction to the teachings of love and forgiveness found in other parts of the Bible, like Jesus' message to love your enemies. This can create a conflict between the idea of justice and mercy.