The passing of mortal life has hitherto been contemplated in immediate connection with God's permanence, and the psalmist's tone has been a wonderful blending of melancholy and trust. But in ver. 5 the sadder side of his contemplations becomes predominant. Frail man, frail because sinful, is his theme. The figures which set forth man's mortality are grand in their unelaborated brevity. They are like some of Michael Angelo's solemn statues. "Thou floodest them away"--a bold metaphor, suggesting the rush of a mighty stream, bearing on its tawny bosom crops, household goods, and corpses, and hurrying with its spoils to the sea. "They become a sleep." Some would take this to mean falling into the sleep of death; others would regard life as compared to a sleep--"for before we are rightly conscious of being alive, we cease to live" (Luther, quoted by Cheyne); while others find the point of comparison in the disappearance, without leaving a trace behind, of the noisy generations, sunk at once into silence, and "occupying no more space on the scroll of Time than a night's sleep" (so Kay). It is tempting to attach "in the morning" to "a sleep," but the recurrence of the expression in ver. 7 points to the retention of the present division of clauses, according to which the springing grass greets the eye at dawn, as if created by a night's rain. The word rendered "springs afresh" is taken in two opposite meanings, being by some rendered _passes away_, and by others as above. Both meanings come from the same radical notion of change, but the latter is evidently the more natural and picturesque here, as preserving, untroubled by any intrusion of an opposite thought, the cheerful picture of the pastures rejoicing in the morning sunshine, and so making more impressive the sudden, sad change wrought by evening, when all the fresh green blades and bright flowers lie turned already into brown hay by the mower's scythe and the fierce sunbeams. "So passeth, in the passing of an hour, Of mortal life, the leaf, the bud, the flower."