NET
1 By David. Do not fret when wicked men seem to succeed. Do not envy evildoers.
Darby
1 [A Psalm] of David.Fret not thyself because of evil-doers, and be not envious of them that work unrighteousness
KJV
1 [A Psalm] of David. Fret not thyself because of evildoers, neither be thou envious against the workers of iniquity.