The last part (vv. 10-13) is somewhat abnormally long, and falls into two parts separated by "Selah," which musical note does not here coincide with the greater divisions. The two pairs of verses are both petitions for removal of sickness, either real or figurative. Their pleading persistence presents substantially the same prayer and supports it by the same considerations of man's transiency. The Pattern of perfect resignation thrice "prayed, saying the same words"; and His suffering followers may do the same, and yet neither sin by impatience, nor weary the Judge by their continual coming. The psalmist sees in his pains God's "stroke," and pleads the effects already produced on him as a reason for cessation. He is already "wasted by the assault of God's hand." One more buffet, and he feels that he must die. It is bold for a sufferer to say to God, "Hold! enough!" but all depends on the tone in which it is said. It may be presumption, or it may be a child's free speech, not in the least trenching on a Father's authority. The sufferer underrates his capacity of endurance, and often thinks, "I can bear no straw more"; but yet he has to bear it. Yet the psalmist's cry rests upon a deep truth: that God cannot mean to crush; therefore he goes on to a deeper insight into the meaning of that "stroke." It is not the attack of an enemy, but the "correction" of a friend. If men regarded sorrows and sicknesses as rebukes for iniquity, they would better understand why sinful life, separated from God, is so fleeting. The characteristic ground tone of the Old Testament echoes here, according to which "the wages of sin is death." The commonplace of man's frailty receives a still more tragic colouring when thus regarded as a consequence of his sin. The psalmist has learned it in relation to his own sufferings, and, because he sees it so clearly, he pleads that these may cease. He looks on his own wasted form; and God's hand seems to him to have taken away all that made it or life desirable and fair, as a moth would gnaw a garment. What a daring figure to compare the mightiest with the feeblest, the Eternal with the very type of evanescence!