James 3:8
"But the tongue can no man tame; it is an unruly evil, full of deadly poison."
Cross References (ranked by relevance)
Their throat is an open sepulchre; with their tongues they have used deceit; the poison of asps is under their lips:
They have sharpened their tongues like a serpent; adders’ poison is under their lips. Selah.
The words of his mouth were smoother than butter, but war was in his heart: his words were softer than oil, yet were they drawn swords.
And the tongue is a fire, a world of iniquity: so is the tongue among our members, that it defileth the whole body, and setteth on fire the course of nature; and it is set on fire of hell.
My soul is among lions: and I lie even among them that are set on fire, even the sons of men, whose teeth are spears and arrows, and their tongue a sharp sword.
Their poison is like the poison of a serpent: they are like the deaf adder that stoppeth her ear;
Behold, they belch out with their mouth: swords are in their lips: for who, say they, doth hear?
Surely the serpent will bite without enchantment; and a babbler is no better.
Their wine is the poison of dragons, and the cruel venom of asps.
And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him.