b'Psalms 391To the excellent musician Jeduthun. I thought, I will take heed to my ways, that I sin not with my tongue: I will keep my mouth bridled, while the wicked is in my sight.I was dumb and spake nothing: I kept silence even from good, and my sorrow was more stirred.Mine heart was hot within me, and while I was musing, the fire kindled, and I spake with my tongue, saying,Lord, let me know mine end, and the measure of my days, what it is: let me know how long I have to live.Behold, thou hast made my days as an hand breadth, and mine age as nothing in respect of thee: surely every man in his best state is altogether vanity. Selah.Doubtless man walketh in a shadow, and disquieteth himself in vain: he heapeth up riches, and cannot tell who shall gather them.98'