*Minor differences ignored. Grouped by changes, with first version listed as example.
Hath God forgotten to be merciful? The prophet still continues debating with himself the same subject. His object, however, is not to overthrow his faith, but rather to raise it up. He does not put this question, as if the point to which it refers were a doubtful matter. It is as if he had said, Hath God forgotten himself? or, hath he changed his nature? for he cannot be God unless he is merciful. I indeed admit that he did not remain unshaken as if he had had a heart of steel. But the more violently he was assailed, the more firmly did he lean upon the truth, That the goodness of God is so inseparably connected with his essence as to render it impossible for him not to be merciful. Whenever, therefore, doubts enter into our minds upon our being harassed with cares, and oppressed with sorrows, let us learn always to endeavor to arrive at a satisfactory answer to this question, Has God changed his nature so as to be no longer merciful? The last clause, Hath he shut up or restrained his compassions in his anger? is to the same effect. It was a very common and notable observation among the holy patriarchs, That God is long -- suffering, slow to wrath, ready to forgive, and easy to be entreated. It was from them that Habakkuk derived the statement which he makes in his song, "Even in his anger he will be mindful of his mercy." (Habakkuk 3:2) The prophet, then, here comes to the conclusion, that the chastisement which he felt would not prevent God from being again reconciled to him, and returning to his wonted manner of bestowing blessings upon him, since his anger towards his own people endures only for a moment. Yea, although God manifests the tokens of his anger, he does not cease most tenderly to love those whom he chastises. His wrath, it its true, rests continually upon the reprobate; but the prophet, accounting himself among the number of God's children, and speaking of other genuine believers, justly argues from the impossibility of the thing, that the temporary displeasure of God cannot break off the course of his goodness and mercy.
Hath God forgotten to be gracious? - Has he passed over mercy in administering his government? Has he ceased to remember that man needs mercy? Has he forgotten that this is an attribute of his own nature?
Hath he in anger shut up his tender mercies? - The original word here rendered "tender mercies" refers to the "bowels," as the seat of compassion or mercy, in accordance with a usage common in Hebrew. See Psalm 25:6, note; Isaiah 16:11, note; Isaiah 63:15, note. Compare Luke 1:78 (in Greek); Philippians 1:8; Philippians 2:1; 1-John 3:17. We speak of the "heart" as the seat of affection and kindness. The Hebrews included the heart, but they used a more general word. The word rendered "shut up" means "closed;" and the question is whether his mercy was closed, or had ceased forever. The psalmist concludes that if this were done, it must be as the result of anger - anger in view of the sins of people.
Hath God - in anger shut up his tender mercies? - The tender mercies of God are the source whence all his kindness to the children of men flows. The metaphor here is taken from a spring, the mouth of which is closed, so that its waters can no longer run in the same channel; but, being confined, break out, and take some other course. Wilt thou take thy mercy from the Israelites, and give it to some other people? This he most certainly did. He took it from the Jews, and gave it to the Gentiles.
Hath God forgotten to be gracious,.... He has not, is it possible that he should? as the Targum; it is not; he cannot forget the purposes of his grace and mercy, nor the covenant and promises of it, nor people the objects of it; and much less can he for his grace and mercy itself, so agreeable to his nature, what he delights in, and which he has proclaimed in Christ:
hath he in anger shut up his tender mercies?; as an avaricious man shuts up his hand, and will not communicate liberally; or as the sea is shut up with doors, that its waters may not overflow; no, the mercies of God are not restrained, though unbelief says they are, at least queries if they are not, Isaiah 63:15, but Faith says they flow freely through Christ, and the people of God are crowned with lovingkindness and tender mercies; God gives liberally, and upbraideth not; and though he may hide his face in a little seeming wrath for a moment, yet with great mercies will he gather, and with everlasting kindness will he have mercy.
Selah. See Gill on Psalm 3:2.
*More commentary available at chapter level.