David begins by saying he had resolved to guard his ways that he might not sin with his tongue and to muzzle his mouth while the wicked was in his presence. He kept silent, even from good, but his distress grew. His heart burned within him, and as he mused the fire kindled; then he spoke with his tongue.
His prayer asks the Lord to let him know his end and the measure of his days, that he may know how fleeting he is. God has made his days a few handbreadths, and his lifetime is as nothing before him; every man is a mere breath, walks about like a shadow, bustles about in vain and heaps up wealth without knowing who will gather it.
Then comes the turn in verse 7: and now, Lord, for what do I wait? My hope is in you. He asks to be delivered from all his transgressions and not to be the scorn of the fool. He was mute, he did not open his mouth, because God had done it; but he begs God to remove his stroke, for he is spent by the hostility of his hand. When God disciplines a man for his sin, he consumes like a moth what he treasures. He closes with a plea: hear my prayer, give ear to my cry, hold not your peace at my tears, for I am a sojourner with you, a guest, like all my fathers. Look away from me, that I may smile again before I depart and am no more.