Contradiction with Ephesians 4:29
This verse encourages speaking edifying words, which could be seen as contradicting the idea of cursing others implied in the chapter from Deuteronomy.
Ephesians 4:29: Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers. [to...: or, to edify profitably]
Contradiction with Matthew 5:44
Encourages blessing those who curse you and praying for them, contradicting the idea of a tribunal of curses.
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 18:21
States that the tongue holds the power of life and death, highlighting the constructive potential of speech, unlike the destructive curses in Deuteronomy.
Proverbs 18:21: Death and life [are] in the power of the tongue: and they that love it shall eat the fruit thereof.
Contradiction with Romans 12:14
Advises blessing those who persecute you, which contrasts with the idea of announcing curses.
Romans 12:14: Bless them which persecute you: bless, and curse not.
Contradiction with James 3:10
Mentions that out of the same mouth proceed blessing and cursing, and suggests this should not be so, in contrast to the pronounced curses mentioned in Deuteronomy.
James 3:10: Out of the same mouth proceedeth blessing and cursing. My brethren, these things ought not so to be.