(2) I am weak.--Properly, wither, or waste with disease, or languish, as in Hosea 4:3; Isaiah 16:8.

Vexed.--So LXX. and Vulg. Literally, affrighted. (Comp. Virgil's gelidusque per ima cucurrit Ossa tremor.)

Verse 2. - Have mercy upon me, O Lord; for I am weak; rather, I am faint, or languid - withered away, like a faded plant or flower. O Lord, heal me; for my bones are vexed. Bodily ailment seems certainly to be implied; but it is that sort of bodily ailment which is often produced by mental distress - a general languor, weariness, and distaste for exertion (comp. Psalm 22:14; Psalm 31:10; Psalm 38:3; Psalm 102:3).

6:1-7 These verses speak the language of a heart truly humbled, of a broken and contrite spirit under great afflictions, sent to awaken conscience and mortify corruption. Sickness brought sin to his remembrance, and he looked upon it as a token of God's displeasure against him. The affliction of his body will be tolerable, if he has comfort in his soul. Christ's sorest complaint, in his sufferings, was of the trouble of his soul, and the want of his Father's smiles. Every page of Scripture proclaims the fact, that salvation is only of the Lord. Man is a sinner, his case can only be reached by mercy; and never is mercy more illustrious than in restoring backsliders. With good reason we may pray, that if it be the will of God, and he has any further work for us or our friends to do in this world, he will yet spare us or them to serve him. To depart and be with Christ is happiest for the saints; but for them to abide in the flesh is more profitable for the church.Have mercy upon me, O Lord,.... He knew he was a sinner, both by original sin and actual transgression, which he was always ready to own; he knew that what he had done deserved the wrath of God, even his hot displeasure; and that for such things it came upon the children of disobedience: he knew that there was mercy with God through Christ, and therefore he flees unto it, pleads for it, and entreats the manifestation of forgiving love: he pleads no merits of his own, nor makes any mention of former works of righteousness done by him, but throws himself upon the mercy of God in Christ; giving this as a reason,

for I am weak; either in body, through some disease upon him; or in soul, being enfeebled by sin, and so without spiritual strength to do that which was good of himself; to exercise grace, and perform duty, and much less to keep the law of God, or make atonement for sin, or to bear the punishment of it;

O Lord, heal me; meaning either his body, for God is the physician of the body, he wounds and he heals; so he healed Hezekiah and others; and he should be sought to in the first place by persons under bodily disorders: or else his soul, as in Psalm 41:4; sin is the disease of the soul, and a very loathsome one it is, and is incurable but by the balm of Gilead, and the physician there; by the blood of Christ, and forgiveness through it; and the forgiveness of sin is the healing of the diseases of the soul, Psalm 103:3;

for my bones are vexed; with strong pain; meaning his body, as Kimchi and Aben Ezra observe; because these are the foundation of the body, and the more principal parts of it: and this may be understood of his grief and trouble of heart for his sins and transgressions, which is sometimes expressed by the bones being broke, and by there being no rest in them, Psalm 51:8.