Ecclesiastes 10:11
If the serpent biteth without enchantment, Then there is no advantage to a master of the tongue.
Jeremiah 8:17
For, lo, I am sending among you serpents, Vipers that have no charmer, And they have bitten you, an affirmation of Jehovah.
Psalm 58:4-5
Their poison is as poison of a serpent, As a deaf asp shutting its ear,
Psalm 52:2
Mischiefs doth thy tongue devise, Like a sharp razor, working deceit.
Psalm 64:3
Who sharpened as a sword their tongue, They directed their arrow -- a bitter word.
Proverbs 18:21
Death and life are in the power of the tongue, And those loving it eat its fruit.
James 3:6
and the tongue is a fire, the world of the unrighteousness, so the tongue is set in our members, which is spotting our whole body, and is setting on fire the course of nature, and is set on fire by the gehenna.