Cursing

Matthew 12:36-37
36 I tell you, on the day of judgment people will give account for every careless word they speak, 37 for by your words you will be justified, and by your words you will be condemned.”

Ephesians 4:29
29 Let no corrupting talk come out of your mouths, but only such as is good for building up, as fits the occasion, that it may give grace to those who hear.

Ephesians 5:4
4 Let there be no filthiness nor foolish talk nor crude joking, which are out of place, but instead let there be thanksgiving.

Colossians 3:8
8 But now you must put them all away: anger, wrath, malice, slander, and obscene talk from your mouth.

James 3:10
10 From the same mouth come blessing and cursing. My brothers,[a] these things ought not to be so.