Contradiction with Matthew 7:1
Jude 1:23 advises making a distinction when saving others, whereas Matthew 7:1 instructs not to judge, which could be seen as contradictory in the approach to dealing with others.
Matthew 7:1: Judge not, that ye be not judged.
Contradiction with James 2:13
Jude 1:23 speaks of saving others with fear, suggesting a judgmental or cautious approach; James 2:13, on the other hand, emphasizes mercy over judgment.
James 2:13: For he shall have judgment without mercy, that hath shewed no mercy; and mercy rejoiceth against judgment. [rejoiceth: or, glorieth]
Contradiction with 1 John 4:18
Jude 1:23 implies rescuing others with a sense of fear, while 1 John 4:18 states that perfect love casts out fear, suggesting a contradiction in the emotion that should guide actions.
1 John 4:18: There is no fear in love; but perfect love casteth out fear: because fear hath torment. He that feareth is not made perfect in love.