Romans 3:13-14

Their throat is an open sepulchre; with their tongues they have spoken craftily; the poison of asps is under their lips:

James 3:5-9

So also the tongue is a little member, and proudly vaunts. Behold how great a pile of wood, a little fire kindleth!

Revelation 21:8

But to those who shrink back through fear, and to the infidels, and to the abominable, and to murderers, and to whoremongers, and to those who use magical incantations, and to idolaters, and to all liars, is their portion [appointed] in the lake which burneth with fire and brimstone; which is the second death.

Treasury of Scripture Knowledge

Summary

Thou givest thy mouth to evil, and thy tongue frameth deceit.

Bible References

Tongue

Romans 3:13
Their throat is an open sepulchre; with their tongues they have spoken craftily; the poison of asps is under their lips:
James 3:5
So also the tongue is a little member, and proudly vaunts. Behold how great a pile of wood, a little fire kindleth!
Revelation 21:8
But to those who shrink back through fear, and to the infidels, and to the abominable, and to murderers, and to whoremongers, and to those who use magical incantations, and to idolaters, and to all liars, is their portion [appointed] in the lake which burneth with fire and brimstone; which is the second death.