Albert Barnes Commentary Psalms 119:115

"Depart from me, ye evil-doers, That I may keep the commandments of my God." — Psalms 119:115 (ASV)

Depart from me, ye evil-doers — Workers of iniquity; bad men. See the notes at (Psalms 6:8). This indicates a determined purpose that nothing should deter or allure him from the service of God. A man who wishes to serve God, and lead a religious life, must separate himself from the society, as such, of unprincipled people.

For I will keep the commandments of my God — This is my fixed resolution. It may be remarked here that:

1. bad people will turn away from the society of one who has formed such a resolution, and who carries it out;
2. the resolution is a necessary one to be formed and executed, if a man will serve God;
3. the formation and execution of such a purpose is the best way to get rid of the society of bad people.