Contradiction with Matthew 5:44
Psalms 35:3 asks for protection and struggle against enemies, while Matthew 5:44 teaches love and prayer 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 12:19
Contrasts with Psalms 35:3 by emphasizing leaving vengeance to God, whereas Psalms 35:3 calls for personal intervention and defense.
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
Encourages not to rejoice at an enemy's downfall, contrasting the plea for defense against adversaries in Psalms 35:3.
Proverbs 24:17: Rejoice not when thine enemy falleth, and let not thine heart be glad when he stumbleth:
Contradiction with Luke 6:27
Instructs to love enemies and do good to them, conflicting with the call for defense against enemies in Psalms 35:3.
Luke 6:27: But I say unto you which hear, Love your enemies, do good to them which hate you,
Contradiction with Exodus 14:14
Suggests that the Lord will fight for you, whereas Psalms 35:3 includes a call to action for personal defense.
Exodus 14:14: The LORD shall fight for you, and ye shall hold your peace.