Set a watch, O Lord, before my mouth; keep the door of my lips. -- PSA.141:3.

If thou, Lord, shouldest mark iniquities, O Lord, who shall stand? -- They provoked his spirit, so that he spake unadvisedly with his lips.

Not that which goeth into the mouth defileth a man; but that which cometh out of the mouth, this defileth a man.

A whisperer separateth chief friends. -- There is that speaketh like the piercings of a sword: but the tongue of the wise is health. The lip of truth shall be established for ever: but a lying tongue is but for a moment. -- The tongue can no man tame; it is an unruly evil, full of deadly poison. Out of the same mouth proceedeth blessing and cursing. My brethren, these things ought not so to be.

Put off . . . anger, wrath, malice, blasphemy, filthy communication out of your mouth. Lie not one to another, seeing that ye have put off the old man with his deeds. -- This is the will of God, even your sanctification. -- In their mouth was found no guile.

Psa.130:3. -Psa.106:33.Matt.15:11.Prov.16:28. -Prov.12:18,19. -Jas.3:8,10.Col.3:8,9. -I Thes.4:3. -Rev.14:5.