James 3:8
but no one of men is able to tame the tongue; an incorrigible evil, full of deadly poison.
Romans 3:13
Their throat is an open sepulchre; with their tongues they have used deceit; the poison of asps is under their lips.
James 3:6
The tongue, a fire, the world of iniquity: the tongue sits down in the midst of our members, and corrupting the whole body, and setting on fire the course of nature; and it is set on fire from hell.
Revelation 12:9
And the great dragon, the old serpent, the one called the devil, and Satan, the one deceiving the whole world, was cast out: he was cast out into the earth, and his angels were cast out with him.