Psalm 37:8 in the King James Version
Cease from anger, and forsake wrath: fret not thyself in any wise to do evil.
Context
7 Rest in the LORD, and wait patiently for him. Don’t fret because of him who prospers in his way, because of the man who makes wicked plots happen.
8 Cease from anger, and forsake wrath. Don’t fret; it leads only to evildoing.
9 For evildoers shall be cut off, but those who wait for the LORD shall inherit the land.