He that speaketh truth sheweth forth righteousness: but a false witness deceit.
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.

  Deceit is in the heart of them that imagine evil: but to the counsellors of peace is joy.

Proverbs 12;17-20