Psalms 141:3-5

Set a guard over my mouth, LORD; keep watch over the door of my lips. Do not let my heart be drawn to what is evil so that I take part in wicked deeds along with those who are evildoers; do not let me eat their delicacies. Let a righteous man strike me—that is a kindness; let him rebuke me—that is oil on my head. My head will not refuse it, for my prayer will still be against the deeds of evildoers.