Proverbs 12:19 in the King James Version
The lip of truth shall be established for ever: but a lying tongue is but for a moment.
Context
18 There is one who speaks rashly like the piercing of a sword, but the tongue of the wise heals.
19 Truth’s lips will be established forever, but a lying tongue is only momentary.
20 Deceit is in the heart of those who plot evil, but joy comes to the promoters of peace.