| Matthew Henry's Concise Commentary 31:9-18 David's troubles made him a man of sorrows. Herein he was a type of Christ, who was acquainted with grief. David acknowledged that his afflictions were merited by his own sins, but Christ suffered for ours. David's friends durst not give him any assistance. Let us not think it strange if thus deserted, but make sure of a Friend in heaven who will not fail. God will be sure to order and dispose all for the best, to all those who commit their spirits also into his hand. The time of life is in God's hands, to lengthen or shorten, make bitter or sweet, according to the counsel of his will. The way of man is not in himself, nor in our friend's hands, nor in our enemies' hands, but in God's. In this faith and confidence he prays that the Lord would save him for his mercies's sake, and not for any merit of his own. He prophesies the silencing of those that reproach and speak evil of the people of God. There is a day coming, when the Lord will execute judgment upon them. In the mean time, we should engage ourselves by well-doing, if possible, to silence the ignorance of foolish men.
Pulpit CommentaryVerse 10. - For my life is spent with grief, and my years with sighing. The psalmist's grief is of old standing. It dates from the time of his great sin (2 Samuel 11:4-17), which is thought to have preceded the revolt of Absalom by the space of twelve years. This sin necessitated a lifelong repentance (Psalm 38:17; Psalm 51:3, etc.). My strength faileth because of mine iniquity. Other causes had, no doubt, contributed to produce the profound depression of the psalmist at this period, but none was of equal force with this (comp. Psalm 38:3-10; Psalm 51:1-14, etc.). It caused his strength to fail utterly, and led to complete prostration both st mind and body. And my bones are consumed; i.e. racked with pain, as though they were being gnawed away.
Gill's Exposition of the Entire BibleFor my life is spent with grief, and my years with sighing,.... Which shows the continuance of his troubles, and that his whole life had been, as it were, an uninterrupted series of sorrows; my strength faileth because of mine iniquity; this opens the source and spring of all his grief and trouble; his sin, and the sin of his nature, in which he was conceived and born; indwelling sin, which remained and worked in him; and it may be also the sin of unbelief, which beset him, and prevailed in him, notwithstanding the instances of divine goodness, the declarations of grace, the discoveries of love, and the exceeding great and precious promises he had made to him; as also his daily sins and infirmities, and very likely some great backslidings, which had brought grief of soul upon aim, and which grief affected the several parts of his body. Sin was the cause of the failure of natural strength in Adam and his posterity; of diseases and death, by which their strength is weakened in the way; and was the cause of impairing moral strength in men to do that which is good, and has a very great influence on the spiritual strength of the Lord's people, in the exercise of grace; and my bones are consumed; which are the firmest and strongest parts of the human body, and the support of it.
Jamieson-Fausset-Brown Bible Commentary10. Though the effects ascribed to grief are not mere figures of speech— spent … consumed—must be taken in the modified sense of wasted and decayed. iniquity—or, suffering by it (see on [581]Ps 40:12).
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