'Fret' in the Bible

Fret not thyself because of evil-doers, Neither be thou envious against them that work unrighteousness.

Rest in Jehovah, and wait patiently for him: Fret not thyself because of him who prospereth in his way, Because of the man who bringeth wicked devices to pass.

Cease from anger, and forsake wrath: Fret not thyself, it tendeth only to evil-doing.