Proverbs 12:18 in the World English Bible
There is one who speaks rashly like the piercing of a sword, but the tongue of the wise heals.
Context
17 He that speaketh truth sheweth forth righteousness: but a false witness deceit.
18 There is that speaketh like the piercings of a sword: but the tongue of the wise is health.
19 The lip of truth shall be established for ever: but a lying tongue is but for a moment.