Proverbs 12:18-20

¹⁸There is some one that useth words which are like the thrusts of a sword; but the tongue of the wise is healing.

¹⁹The lip of truth will stand firm for ever; but only for a moment the tongue of falsehood.

²⁰Deceit is in the heart of those that contrive evil; but for the counsellors of peace there is joy.