Who forgiveth all thy iniquities He now enumerates the different kinds of the divine benefits, in considering which he has told us that we are too forgetful and slothful. It is not without cause that he begins with God's pardoning mercy, for reconciliation with him is the fountain from which all other blessings flow. God's goodness extends even to the ungodly; but they are, notwithstanding, so far from having the enjoyment of it, that they do not even taste it. The first then of all the blessings of which we have the true and substantial enjoyment, is that which consists in God's freely pardoning and blotting out our sins, and receiving us into his favor. Yea, rather the forgiveness of sins, since it is accompanied with our restoration to the favor of God, also sanctifies whatever good things he bestows upon us, that they may contribute to our welfare. The second clause is; either a repetition of the same sentiment, or else it opens up a wider view of it; for the consequence of free forgiveness is, that God governs us by his Spirit, mortifies the lusts of our flesh, cleanses us from our corruptions, and restores us to the healthy condition of a godly and an upright life. These who understand the words, who healeth all thy diseases, as referring to the diseases of the body, and as implying that God, when he has forgiven our sins, also delivers us from bodily maladies, seem to put upon them a meaning too restricted. I have no doubt that the medicine spoken of has a respect to the blotting out of guilt; and, secondly, to the curing us of the corruptions inherent in our nature, which is effected by the Spirit of regeneration; and if any one will add as a third particular included, that God being once pacified towards us, also remits the punishment which we deserve, I will not object. Let us learn from this passage that, until the heavenly Physician succor us, we nourish within us, not only many diseases, but even many deaths.

Who forgiveth all thine iniquities - Pardoning all thy sins. That is, It is a characteristic of God to pardon sin, and I have evidence that he has done it in my own case, and this is a ground for praise. It is observable that this is the first thing in view of the psalmist - the first of the "benefits" which he had received from God, or the first thing in importance among his acts or his dealings, which called for praise. Properly considered, this is the first thing which calls for praise. That God is a merciful God - that he has declared his willingness to pardon sin - that he has devised and revealed a way by which this can be done, and that he has actually done it in our own case, is the most important matter for which we should praise him. When we understand all the things which most affect our welfare, and which enter most deeply into our happiness here and hereafter, we shall find that this is a blessing compared with which all other favors are comparative trifles.
Who healeth all thy diseases - Perhaps, in the case of the psalmist, referring to some particular instance in which he had been recovered from dangerous sickness. The word rendered "diseases" - תחלואים tachălû'iym - occurs only in the plural form. It is translated "sicknesses," in Deuteronomy 29:22; "diseases," as here, in 2-Chronicles 21:19; "them that are sick," in Jeremiah 14:18; and "grievous (deaths)" in Jeremiah 16:4. It does not elsewhere occur. It is applicable to all forms of sickness; or in this place it may refer to some particular diseases with which David had been afflicted. We have several allusions in the Psalm to times when the authors of the psalms were afflicted with sickness. So in the Psalm of David. Compare Psalm 6:2; Psalm 38:7; Psalm 41:8. The thought here is, that it is a proper ground of praise to God that he has the power of healing disease. All instances of restoration to health are illustrations of this, for whatever may be the skill of physicians, or the wise adaptation of means, healing virtue comes from God alone.

Who forgiveth - The benefits are the following,
1. Forgiveness of sin.
2. Restoration of health: "Who healeth all thy diseases."

Who (b) forgiveth all thine iniquities; who healeth all thy diseases;
(b) That is, the beginning and chiefest of all benefits, remission of sin.

Who forgiveth all thine iniquities,.... The psalmist explains here what he means by benefits, and gives a particular enumeration of them; and begins with the blessing of pardon, which is a special and peculiar benefit; it is according to the riches of divine grace, and the multitude of tender mercies; without which all outward blessings signify nothing; and, without a sense of this, a man is not in a suitable and proper frame to bless the Lord; and this being the first benefit a soul sensible of sin, its guilt and is concerned for, and seeks after; so enjoying it, it is the first he is thankful for: this is rightly ascribed to God; for none can forgive sins but he; and what he forgives are not mere infirmities, peccadillos, the lesser sins of life; but "iniquities", grosser sins, unrighteousnesses, impieties, the most enormous crimes, sins of a crimson and scarlet die; yea, "all" of them, though they are many, more than the hairs of a man's head; he abundantly pardons, multiplies pardons, as sins are multiplied, and leaves none unforgiven; original sin, actual sins, sins of heart, lip, and life, of omission and commission, all are forgiven for Christ's sake: and the special mercy is when a man has an application of this to himself, and can say to his soul, as David to his, God has forgiven "thine" iniquities; for though it may be observed with pleasure, and it is an encouragement to hope in the Lord, that he is a forgiving God, and has forgiven others, yet what would this avail a man, if his sins should not be forgiven? the sweetness of the blessing lies in its being brought home to a man's own soul: and it may be further observed, that this is a continued act; it is not said who has forgiven, and will forgive, though both are true; but "forgiveth", continues to forgive; for as there is a continual virtue in the sacrifice of the Lamb of God to take away the sin of the world, and in his blood to cleanse from all sin, so there is a continual flow of pardoning grace in the heart of God, which is afresh applied to the consciences of his people by his Spirit; and this is a blessing to be thankful for:
who healeth all thy diseases; not bodily ones, though the Lord is the physician of the bodies as well as of the souls of men, and sometimes heals the diseases of soul and body at once, as in the case of the paralytic man in the Gospel; but spiritual diseases, or soul maladies, are here meant; the same with "iniquities" in the preceding clause: sin is a natural, hereditary, epidemical, nauseous, and mortal disease; and there are many of them, a complication of them, in men, which God only can cure; and he heals them by his word, by means of his Gospel, preaching peace, pardon, and righteousness by Christ; by the blood, wounds, and stripes of his Son; by the application of pardoning grace and mercy; for healing diseases, and forgiving iniquities, are one and the same thing; see Isaiah 33:24, and this the Lord does freely, fully, and infallibly, and for which thanks are due unto him; and it would be very ungrateful, and justly resented, should they not be returned to him; see Luke 17:15.

diseases--as penal inflictions (Deuteronomy 29:22; 2-Chronicles 21:19).