Contradiction with Proverbs 15:1
A soft answer turneth away wrath: Numbers 16:15 shows Moses expressing anger, seemingly contradicting the value of a soft response.
Proverbs 15:1: A soft answer turneth away wrath: but grievous words stir up anger.
Contradiction with Matthew 5:39
Jesus teaches to turn the other cheek; Moses' anger in Numbers 16:15 contrasts with this guidance of non-retaliation.
Matthew 5:39: But I say unto you, That ye resist not evil: but whosoever shall smite thee on thy right cheek, turn to him the other also.
Contradiction with Romans 12:19
Says vengeance belongs to the Lord, not man; Moses' anger could be seen as conflicting with this concept.
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 James 1:19-20
Emphasizes being slow to anger, contrasting with Moses’ expression of anger in Numbers 16:15.
James 1:19-20: Wherefore, my beloved brethren, let every man be swift to hear, slow to speak, slow to wrath:
Contradiction with Ephesians 4:26
Advises not to sin in anger; one could argue Moses' reaction might be perceived as sinning in anger.
Ephesians 4:26: Be ye angry, and sin not: let not the sun go down upon your wrath: