Contradiction with Proverbs 24:17
This verse advises to not rejoice when your enemy falls, in contrast to Psalms 83:10's depiction of desiring the downfall of enemies.
Proverbs 24:17: Rejoice not when thine enemy falleth, and let not thine heart be glad when he stumbleth:
Contradiction with Matthew 5:44
Jesus instructs to love your enemies and pray for those who persecute you, contradicting the notion of seeking vengeance or destruction as in Psalms 83:10.
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
Advises against seeking personal revenge, instead leaving room for God's wrath, which may conflict with the imprecatory nature of Psalms 83:10.
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 Exodus 23:4-5
Encourages returning an enemy's stray animal and providing help, which contradicts the sentiment of ensuring their defeat as in Psalms 83:10.
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 Peter 3:9
Calls for not repaying evil with evil or insult with insult, which contrasts the plea for retribution against enemies in Psalms 83:10.
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.