Psalm 39:1-4

I said, I will take heed to my ways, That I sin not with my tongue: I will keep my mouth with a bridle, While the wicked is before me. I was dumb with silence, I held my peace, even from good; And my sorrow was stirred. My heart was hot within me, while I was musing the fire burned: Then spake I with my tongue. LORD, make me to know mine end, and the measure of my days, what it is; That I may know how frail I am.