Wilt thou be wroth against us for ever? Here the godly bewail the long continuance of their afflictions, and derive an argument in prayer from the nature of God, as it is described in the law, -- "The Lord, The Lord God, merciful and gracious, long-suffering, and abundant in goodness and truth, keeping mercy for thousands, forgiving iniquity, and transgression, and sin," (Exodus 34:6, 7,) -- a truth which has also been brought under our notice in Psalm 30:5, "For his anger endureth but a moment; in his favor is life: weeping may endure for a night, but joy cometh in the morning." It thus becomes us, when we engage in prayer, to meditate upon the Divine promises that we may be furnished with suitable expressions. It may seem, at first view, that these devout Jews find fault with God, as if he exhibited his character to them in a light very different from that in which he was wont to exhibit it; but the object they had in view undoubtedly was to obtain, in the struggle they were resolutely maintaining against temptation, hope of relief from the contemplation of the nature of God; as if they laid it down as a fixed principle, that it is impossible for Him to be angry for ever. We may observe, by the way, that it is evident, from their praying in this manner, that they were weighed down with such an oppressive load of calamities, as to be almost unable any longer to endure them. Let us therefore learn, that although God may not immediately grant us manifest tokens of his returning favor, yet we must not cease to persevere in earnest prayer. If it is objected, that then God has promised in vain that his anger would be of short duration, I answer, that if we entertain suitable views of our own sins, his anger will assuredly appear to be always of short continuance; and if we call to remembrance the everlasting course of his mercy, we will confess that his anger endures but for a moment. As our corrupt nature is ever relapsing into the wanton indulgence of its native propensities, manifold corrections are indispensably necessary to subdue it thoroughly. The godly, still dwelling on the same theme, ask, in the 6th verse, whether God will not turn again and quicken them Being fully convinced of the truth of this principle, That the punishments with which God chastises his children are only temporary; they thereby encourage themselves in the confident expectation, that although he may be now justly displeased, and may have turned away his face from them, yet, when they implore his mercy, he will be entreated, and raising the dead to life again, will turn their mourning into gladness. By the word quicken, they complain that they almost resemble persons who are dead, or that they are stunned and laid prostrate with afflictions. And when they promise themselves matter of rejoicing, they intimate that in the meantime they are well nigh worn out with sorrow.

Wilt thou be angry with us for ever? - Thine anger is so long continued that it seems as if it would never cease.
Wilt thou draw out thine anger - Wilt thou protract or prolong it? The idea is that of a determined purpose, in retaining his anger, as if his wrath would cease of necessity unless there were such a direct exercise of will.
To all generations - literally, "from generation to generation." That is, - so that not merely the generation which has sinned, and which has brought down these tokens of displeasure, shall suffer, but the next, and the next, and the next, forever. The plea is that the judgment might terminate, and not reach coming generations.

Wilt thou draw out thine anger - We have already suffered much and long; our fathers have suffered, and we have succeeded to their distresses. Draw not out thy anger against us from generation to generation.

Wilt thou be angry with us (d) for ever? wilt thou draw out thine anger to all generations?
(d) As in times past they had felt God's mercies, so now being oppressed by the long continuance of evil, they pray to God that according to his nature he would be merciful to them.

Wilt thou be angry with us for ever?.... God is angry with the wicked every day, their life being a continued series of sin, without repentance for it, or confession of it; and he will be so for ever, of which they will have a constant sense and feeling; and is the worm that never dies, and the fire that is inextinguishable; but he does not retain his anger for ever with his own people; though he is displeased with them, and chastises them for their sins, his anger endures but for a moment; he is pacified towards them and turns away his anger from them, by discovering his pardoning love, and withdrawing his afflicting hand:
wilt thou draw out thine anger to all generations? out of his heart, where it is supposed to be conceived; and out of his treasury, where it is thought to be laid up: this has been drawn out to a great length of time upon the Jewish nation; it has been upon them for almost twenty centuries, or ages, and still remains, and will until the fulness of the Gentiles is brought in; but it will not be drawn out to "all" ages or generations; for they shall return to the Lord, and seek him; and he will come to them, and turn away iniquity from them, and so all Israel shall be saved.

draw out--or, "prolong" (Psalm 36:10).