James 3:8
But the tongue no man or woman is able to tame. It is an ever-busy mischief, and is full of deadly poison.
Romans 3:13
"Their throats resemble an opened grave; with their tongues they have been talking deceitfully." "The venom of vipers lies hidden behind their lips."
James 3:6
And the tongue is a fire. That world of iniquity, the tongue, is placed within us spotting and soiling our whole nature, and setting the whole round of our lives on fire, being itself set on fire by Gehenna.
Revelation 12:9
The great Dragon, the ancient serpent, he who is called 'the Devil' and 'the Adversary' and leads the whole earth astray, was hurled down: he was hurled down to the earth, and his angels were hurled down with him.