Ecclesiastes 10:11
Surely the serpent will bite without enchantment; and a babbler is no better.
Jeremiah 8:17
For behold, I will send serpents, cockatrices, among you, which will not be charmed, and they shall bite you, saith the LORD.
Psalm 58:4-5
Their poison is like the poison of a serpent: they are like the deaf adder that stoppeth her ear;
Psalm 52:2
Thy tongue deviseth mischiefs; like a sharp razor, working deceitfully.
Psalm 64:3
Who whet their tongue like a sword, and bend their bows to shoot their arrows, even bitter words:
Proverbs 18:21
Death and life are in the power of the tongue: and they that love it shall eat the fruit of it.
James 3:6
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 from hell.