By our speech we can ruin the world, turn harmony to chaos, throw mud on a reputation, send the whole world up in smoke and go up in smoke with it, smoke right from the pit of hell.
This is scary: You can tame a tiger, but you can’t tame a tongue—it’s never been done. The tongue runs wild, a wanton killer.
With our tongues we bless God our Father; with the same tongues we curse the very men and women he made in his image. Curses and blessings out of the same mouth!
My friends, this can’t go on.
As this quote points out, taming the tongue is nearly impossible. For some advice on how to do it practically, see this discussion between Robert George and Cornell West.