Contradiction with Isaiah 40:23
This verse suggests that God brings princes to nothing and makes the judges of the earth as vanity, which seems contradictory to the enemies turning back and perishing in Psalms 9:3.
Isaiah 40:23: That bringeth the princes to nothing; he maketh the judges of the earth as vanity.
Contradiction with Matthew 5:44
This verse emphasizes loving enemies and praying for those who persecute, contrasting with the notion of enemies being defeated and perishing before your presence in Psalms 9:3.
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 24:17
Advises against rejoicing when your enemy falls, which contradicts the implication of triumph over enemies in Psalms 9:3.
Proverbs 24:17: Rejoice not when thine enemy falleth, and let not thine heart be glad when he stumbleth:
Contradiction with Romans 12:19
Encourages believers not to avenge themselves, but rather leave room for God's wrath, which contrasts with the immediate downfall of enemies described in Psalms 9:3.
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 16:7
Suggests that when a man's ways please the Lord, He makes even his enemies to be at peace with him, which contradicts the notion of enemies turning back and perishing in Psalms 9:3.
Proverbs 16:7: When a man's ways please the LORD, he maketh even his enemies to be at peace with him.