Psalm 141:3-5 ESV
Set a guard, O Lord, over my mouth;
keep watch over the door of my lips!
Do not let my heart incline to any evil,
to busy myself with wicked deeds
in company with men who work iniquity,
and let me not eat of their delicacies!
Let a righteous man strike me—it is a kindness;
let him rebuke me—it is oil for my head;
let my head not refuse it.
O how we all need such a prayer as this!