Psalms 144:4

When men become eminent for things as to which they have had few advantages, they should be more deeply sensible that God has been their Teacher. Happy those to whom the Lord gives that noblest victory, conquest and dominion over their own spirits. A prayer for further mercy is fitly begun with a thanksgiving for former mercy. There was a special power of God, inclining the people of Israel to be subject to David; it was typical of the bringing souls into subjection to the Lord Jesus. Man's days have little substance, considering how many thoughts and cares of a never-dying soul are employed about a poor dying body. Man's life is as a shadow that passes away. In their highest earthly exaltation, believers will recollect how mean, sinful, and vile they are in themselves; thus they will be preserved from self-importance and presumption. God's time to help his people is, when they are sinking, and all other helps fail.

Man is like to vanity. Adam is like to Abel. He is like that which is nothing at all. He is actually vain, and he resembles that unsubstantial empty thing which is nothing but a blown up nothing, —a puff, a bubble. Yet he is not vanity, but only like it. He is not so substantial as that unreal thing; he is only the likeness of it. Lord, what is a man? It is wonderful that God should think of such a pretentious insignificance. His days are as a shadow that passeth away. He is so short lived that he scarcely attains to years, but exists by the day, like the ephemera, whose birth and death are both seen by the self same sun. His life is only like to a shadow, which is in itself a vague resemblance, an absence of something rather than in itself an existence. Observe that human life is not only as a shade, but as a shade which is about to depart. It is a mere mirage, the image of a thing which is not, a phantasm which melts back into nothing. How is it that the Eternal should make so much of mortal man, who begins to die as soon as he begins to live? The connection of the two verses before us with the rest of the psalm is not far to seek: David trusts in God and finds him everything; he looks to man and sees him to be nothing; and then he wonders how it is that the great Lord can condescend to take notice of such a piece of folly and deceit as man.