Fret not thyself because of evildoers

Psa 37:1 A Psalm of David. Fret not thyself because of evildoers, neither be thou envious against the workers of iniquity. Psa 37:2 For they shall soon be cut down like the grass, and wither as the green herb. Psa 37:3 Trust in the LORD, and do good; so shalt thou dwell in the land, and verily thou shalt be fed. Psa 37:4 Delight thyself also in the LORD; and he shall give thee the desires of thine heart. Psa 37:5 Commit thy way unto the LORD; trust also in him; and he shall bring it to pass. Psa 37:6 And he shall bring forth thy righteousness as the light, and thy judgment as the noonday. Psa 37:7 Rest in the LORD, 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.