Psalm 34:13

Set a watch, O LORD, before my mouth; keep the door of my lips.

Whoso keepeth his mouth and his tongue keepeth his soul from troubles.

Who did no sin, neither was guile found in his mouth:

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.

Lie not one to another, seeing that ye have put off the old man with his deeds;

Wherefore, my beloved brethren, let every man be swift to hear, slow to speak, slow to wrath:

He that keepeth his mouth keepeth his life: but he that openeth wide his lips shall have destruction.

For in many things we offend all. If any man offend not in word, the same is a perfect man, and able also to bridle the whole body.

I said, I will take heed to my ways, that I sin not with my tongue: I will keep my mouth with a bridle, while the wicked is before me.

The lip of truth shall be established for ever: but a lying tongue is but for a moment.

Lying lips are abomination to the LORD: but they that deal truly are his delight.

Death and life are in the power of the tongue: and they that love it shall eat the fruit thereof.

Wherefore laying aside all malice, and all guile, and hypocrisies, and envies, and all evil speakings,

Wickedness is in the midst thereof: deceit and guile depart not from her streets.

A false witness shall not be unpunished, and he that speaketh lies shall perish.

For he said, Surely they are my people, children that will not lie: so he was their Saviour.