Ecclesiastes 10:11
If the serpent bite before enchantment, then the charmer hath no advantage.
Jeremiah 8:17
For behold, I send among you serpents, vipers against which there is no charm, and they shall bite you, saith Jehovah.
Psalm 58:4-5
Their poison is like the poison of a serpent: they are like the deaf adder which stoppeth her ear;
Psalm 52:2
Thy tongue deviseth mischievous things, like a sharp razor, practising deceit.
Psalm 64:3
Who have sharpened their tongue like a sword, and have aimed their arrow, a bitter word;
Proverbs 18:21
Death and life are in the power of the tongue, and they that love it shall eat the fruit thereof.
James 3:6
and the tongue is fire, the world of unrighteousness; the tongue is set in our members, the defiler of the whole body, and which sets fire to the course of nature, and is set on fire of hell.