Psalm 39:1-4

I said, “I will guard my ways, that I may not sin with my tongue; I will guard my mouth with a muzzle, so long as the wicked are in my presence.” I was mute and silent; I held my peace to no avail, and my distress grew worse. My heart became hot within me. As I mused, the fire burned; then I spoke with my tongue: “O LORD, make me know my end and what is the measure of my days; let me know how fleeting I am!