Psalms 52:2

52:2 Your tongue carries out your destructive plans;

it is as effective as a sharp razor, O deceiver.

Psalms 64:3

64:3 They sharpen their tongues like a sword;

they aim their arrow, a slanderous charge,

Proverbs 18:21

18:21 Death and life are in the power of the tongue,

and those who love its use will eat its fruit.

James 3:6

3:6 And the tongue is a fire! The tongue represents the world of wrongdoing among the parts of our bodies. It pollutes the entire body and sets fire to the course of human existence – and is set on fire by hell.