Job 15:5

Even so the tongue is a little member, and boasteth great things. Behold, how great a matter a little fire kindleth! 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. For every kind of beasts, and of birds, and of serpents, and of things in the sea, is tamed, and hath been tamed of mankind: But the tongue can no man tame; it is an unruly evil, full of deadly poison.

And they bend their tongues like their bow for lies: but they are not valiant for the truth upon the earth; for they proceed from evil to evil, and they know not me, saith the Lord. Take ye heed every one of his neighbour, and trust ye not in any brother: for every brother will utterly supplant, and every neighbour will walk with slanders. And they will deceive every one his neighbour, and will not speak the truth: they have taught their tongue to speak lies, and weary themselves to commit iniquity.

Their tongue is as an arrow shot out; it speaketh deceit: one speaketh peaceably to his neighbour with his mouth, but in heart he layeth his wait.

Thou givest thy mouth to evil, and thy tongue frameth deceit. Thou sittest and speakest against thy brother; thou slanderest thine own mother’s son.

Thy tongue deviseth mischiefs; like a sharp razor, working deceitfully. Thou lovest evil more than good; and lying rather than to speak righteousness. Selah. Thou lovest all devouring words, O thou deceitful tongue.

If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart, this man’s religion is vain.

He taketh the wise in their own craftiness: and the counsel of the froward is carried headlong.

This is one thing, therefore I said it, He destroyeth the perfect and the wicked. If the scourge slay suddenly, he will laugh at the trial of the innocent. The earth is given into the hand of the wicked: he covereth the faces of the judges thereof; if not, where, and who is he?

A good man out of the good treasure of his heart bringeth forth that which is good; and an evil man out of the evil treasure of his heart bringeth forth that which is evil: for of the abundance of the heart his mouth speaketh.

Deliver my soul, O Lord, from lying lips, and from a deceitful tongue. What shall be given unto thee? or what shall be done unto thee, thou false tongue?

Who whet their tongue like a sword, and bend their bows to shoot their arrows, even bitter words:

The tabernacles of robbers prosper, and they that provoke God are secure; into whose hand God bringeth abundantly.

For from within, out of the heart of men, proceed evil thoughts, adulteries, fornications, murders, Thefts, covetousness, wickedness, deceit, lasciviousness, an evil eye, blasphemy, pride, foolishness: