Wilt thou restrain thyself for these things, O Jehovah? The people strengthen themselves by assured confidence, that God will not permit his glory to be trampled under foot, though men provoke him by innumerable transgressions. This can yield no consolation of any kind to hypocrites, but relates solely to those who are moved by a true sense of the mercy of God. Such persons believe and are fully persuaded, though death threaten them, that God will nevertheless have regard to his own glow, and will at least be gracious to the remnant, that the seed may not perish. And wilt thou afflict us beyond measure? [1] He shews that it is impossible for God not to be mindful of his mercy; for "he cannot deny himself." (2-Timothy 2:13.) But our salvation is connected with his glory. This ought to be carefully observed; for, after having spoken of the glory of God, he adds, "Thou wilt not afflict us beyond measure." The Lord will therefore restrain his chastisements; for his glory, which he cannot disregard, is deeply involved in our deliverance from death. To this prayer, therefore, let us betake ourselves whenever we are attacked by our enemies; not in the manner of hypocrites, (who haughtily boast of the glory of God, of which they have no experience whatever,) but with repentance and faith, that we may actually obtain the fruit of that glory.

Footnotes

1 - "That is, Canst thou hold out against so many moving considerations? Is it possible that thou canst behold thy children in chains, thy city in ruins, thy temple a heap of stones, and not be prevailed on to pity and put an end to our great afflictions?" -- White.

Wilt thou refrain thyself - Wilt thou refuse to come to our aid? Wilt thou decline to visit us, and save us from our calamities?
Wilt thou hold thy peace - Wilt thou not speak for our rescue, and command us to be delivered? Thus closes this chapter of great tenderness and beauty. It is a model of affectionate and earnest entreaty for the divine interposition in the day of calamity. With such tender and affectionate earnestness may we learn to plead with God! Thus may all his people learn to approach him as a Father: thus feel that they have the inestimable privilege, in times of trial, of making known their needs to the High and Holy One. Thus, when calamity presses on us; when as individuals or as families we are afflicted; or when our country or the church is suffering under long trials, may we go to God and humbly confess our sins, and urge his promises, and take hold of his strength, and plead with him to interpose. Thus pleading, be will hear us; thus presenting our cause, he will interpose to save.

Wilt thou restrain thyself (n) for these [things], O LORD? wilt thou hold thy peace, and grievously afflict us?
(n) That is, at the contempt of your own glory? Though our sins have deserved this, yet you will not permit your glory thus to be diminished.

Wilt thou refrain thyself for these things, O Lord?.... From delivering us out of our troubles and miseries, and taking vengeance on our enemies, and showing thy zeal for thine own glory; or, as Kimchi paraphrases it,
"how canst thou contain thyself for these things, and not have mercy?''
how canst thou bear to see Judea, and all its cities, a wilderness; Jerusalem, and the temple of it, in ruins?
wilt thou hold thy peace? or, "be silent"; and not plead thine own cause, and the cause of thy people?
and afflict us very sore? exceedingly, even to extremity; or for ever, as the Targum, thinking it long, as well as heavy. Jerom observes, that the Jews say these words in their synagogues every day; which show that they look upon this prophecy to respect their present case.

for these things--Wilt Thou, notwithstanding these calamities of Thy people, still refuse Thy aid (Isaiah 42:14)?
In Isaiah 64:9, their plea was, "we are all Thy people." In answer, God declares that others (Gentiles) would be taken into covenant with Him, while His ancient people would be rejected. The Jews were slow to believe this; hence Paul says (Romans 10:20) that Isaiah was "very bold" in advancing so unpopular a sentiment; he implies what Paul states (Romans 2:28; Romans 9:6-7; Romans. 11:1-31), that "they are not all (in opposition to the Jews' plea, Isaiah 64:9) Israel which are of Israel." God's reason for so severely dealing with Israel is not changeableness in Him, but sin in them (Isaiah 65:2-7). Yet the whole nation shall not be destroyed, but only the wicked; a remnant shall be saved (Isaiah 65:8-16). There shall be, finally, universal blessedness to Israel, such as they had prayed for (Isaiah 65:17-25).

Wilt thou - Do none of these things move thee to take vengeance? Thy peace - Wilt thou be as one that regards not?