Hang with me while I remind you of some fairly popular passages:
James 3:6-12 (Excerpts) “The tongue is a fire, a world of unrighteousness. The tongue is set among our members, staining the whole body, setting on fire the entire course of life, and set on fire by hell…no human being can tame the tongue. It is a restless evil, full of deadly poison. With it we bless our Lord and Father, and with it we curse people who are made in the likeness of God. From the same mouth come blessing and cursing…”
Ephesians 4:29 “Let no corrupting talk come out of your mouths, but only such as is good for building up..