Therefore he said that he would destroy them, had not Moses his chosen stood before him in the breach, to turn away his wrath, lest he should destroy them.

And he said that he would destroy them, had not Moses, his chosen, stood before him in the breach, to turn away his fury, lest he should destroy them.

And He saith to destroy them, Unless Moses, His chosen one, Had stood in the breach before Him, To turn back His wrath from destroying.

And he was purposing to put an end to them if Moses, his special servant, had not gone up before him, between him and his people, turning back his wrath, to keep them from destruction.

Therefore He said that He would destroy them, Had not Moses His chosen stood before Him in the breach, To turn back His wrath, lest He should destroy them.

And he said The prophet informs us, by these words, that the people had a feeling sense of their remarkable deliverance from impending destruction, by means of prayer alone, which, for a season, restrained God's vengeance from bursting forth against them. In a very short time, however, they return to their wonted disposition of mind, a striking proof of the awful perversity of their hearts. To represent how highly God was offended, the prophet says that he had purposed to destroy the transgressors: not that God is subject to human passions, to be very angry for a little, and then immediately afterwards, on being appeased, changes his purpose; for God, in his secret counsel, had resolved upon their forgiveness, even as he actually did pardon them. But the prophet makes mention of another purpose, by which God designed to strike the people with terror, that coming to know and acknowledge the greatness of their sin, they might be humbled on account of it. This is that repentance so frequently referred to in the Scriptures. Not that God is mutable in himself; but he speaks after the manner of men, that we may be affected with a more feeling sense of his wrath: like a king who had resolved to pardon an offender, yet sisted him before his judgment-seat, the more effectually to impress him with the magnitude of the kindness done to him. God, therefore, while he keeps to himself his secret purpose, declared openly to the people that they had committed a trespass which deserved to be punished with eternal death. Next he says that Moses stood in the breach, meaning that he had made intercession with God, lest his awful vengeance might break forth among the people. There is here an allusion to the manner in which cities are stormed; for if a breach is made in the wall by any of the various engines which are employed in war, brave soldiers will instantly throw themselves into the breach to defend it. [1] Hence Ezekiel reproaches the false prophets, who, unlike Moses, deceiving the people by their flatteries, making, as it were, a mud-wall, do not place themselves in the breach in the day of battle. "Ye have not gone up into the gaps, neither made up the hedge for the house of Israel, to stand in the battle in the day of the Lord," Ezekiel 13:5. Some expositors are of opinion that the prophet refers to the separation which the people had made among themselves in violating the covenant of God, and the sacred relation in which they stood to each other; but the meaning is the same. For in that breach which gave rise to this metaphor or similitude, God, in defending his people so faithfully, was to them in place of a wall or bulwark. Having provoked him to anger anew, he was about to rush upon them for their destruction, had not Moses interposed as their intercessor.

Footnotes

1 - The sins of the people had opened a breach or gap, for God as an enemy to enter and destroy them. But, like soldiers who stand in the breach that has been made in the walls of a beleaguered city to oppose the irruption of the enemy, Moses, by his earnest prayer, stopped this breach, Exodus 32:11-14. "Moses is here mentioned in the character of a mediator, under the figure of one standing in the breach of the wall of a city made by besiegers, to oppose any farther hostile aggressions. The figure of a breach is frequently employed in Scripture to denote some destruction by God. Thus in Judges 21:15, God made a breach,phrph, in the tribes of Israel, i.e., He destroyed one of the tribes, viz., that of Benjamin: see also 2 Samuel 6:8; Ezekiel 22:30. Hence in this passage we understand that God would have destroyed the Israelites, had not Moses stood in the breach, i.e., interceded by his prayers, just at the time when the divine judgments were about to be executed. The Chaldee has paraphrased it thus, If Moses had not stood before Him and prevailed in prayer, i.e., arrested the destruction." -- Phillips

Therefore he said that he would destroy them - See Exodus 32:10-14. He threatened to destroy them, and he would have done it, if Moses had not interposed and pleaded for them. There was nothing strange or very unusual in this. Many a descending curse upon guilty people is turned away by prayer, and by human intervention. We are constantly endeavoring to turn aside evils which would come upon others - by our intervention - by labor or by prayer. Thus, when we toil to provide food for our children, or give it in charity to the poor, we are endeavoring to avert the evil of starvation which would otherwise come upon them; when we provide for them clothing, we turn away the evils of nakedness and cold; when we give them medicine we turn away the evil of long-continued disease or of death; when we rush through the flames if a house is on fire, or venture out in a rough sea in a boat, to save others from devouring flame or from a watery grave, we seek to turn aside evils which would otherwise come upon them. So when we pray for others we may turn away evils which would otherwise descend on the guilty. No one can estimate the number or the amount of evils which are thus turned away from the guilty and the suffering by intervention and intercession; no one can tell how many of the blessings of his own life he owes to the intercessions and the toils of others. "All the blessings that come upon sinners - "all" that is done to turn away deserved wrath from people - is owing to the fact that the one great Intercessor - greater than Moses - cast himself into the "breach," and himself met and rolled back the woes which were coming upon a guilty world. "Had not Moses his chosen." Chosen to lead and guide his people to the promised land.
Stood before him - Presented himself before him.
In the breach - literally, "in the breaking." The allusion is to a breach made in a wall 1-Kings 11:27; Isaiah 30:13; Amos 4:3; Job 30:14, and to the force with which an army rushes through a breach that is thus made. So God seemed to be about to come forth to destroy the nation.

Moses his chosen - Or elect; (Vulgate, electus ejus; Septuagint, ὁ εκλεκτος αυτου); the person that he had appointed for this work. It would be very difficult to show that this word in any part of the Old Testament refers to the eternal state of any man, much less to the doctrine of unconditional election and reprobation.

Therefore he said that he would destroy them, had (l) not Moses his chosen stood before him in the breach, to turn away his wrath, lest he should destroy [them].
(l) If Moses, by his intercession, had not obtained God's favour against their rebellion.

Therefore he said that he would destroy them,.... He said in his word, the Targum adds; he thought within himself he would; he seemed determined in his own mind to destroy them, being provoked at their wretched forgetfulness of him, and their idolatry; he said to Moses,
let me alone, that my wrath may wax hot against them, and that I may consume them, Exodus 32:10. The decree indeed was not gone forth, but there was such an appearance of displeasure as if ruin was determined; and a great number was destroyed, and the whole body was threatened.
Had not Moses his chosen stood before him in the breach; made between God and the Israelites by their sin; the allusion is either to an hedge broken down, at which a spoiler enters, unless made up, Ezekiel 22:30, or to a breach made in the wall of a besieged city, at which the besieger enters, unless stopped by the besieged, Isaiah 30:13, or to the bank or dam of a river broken down, which lets in a flood of waters, 2-Samuel 5:20. So Moses made up the hedge, and stood in the gap; he presented himself to God, rushing in like a man of war, and pouring out his wrath like an inundation of waters: this is to be understood of his fervent and importunate prayer to God on the behalf of this people, and which succeeded.
To turn away his wrath, lest he should destroy them; Exodus 32:11 so the Targum,
"unless Moses his chosen had rose up and strengthened, or prevailed in his prayer before him to turn away his wrath from destroying.''
This shows the power and efficacy of prayer, and of what avail it is with God, especially the prayer of his elect; it was Moses, his chosen, that prayed, a choice servant of his; and whom he had chosen to everlasting life, as well as to be the deliverer, guide, and governor of Israel; see Luke 18:7. Herein he was an eminent type of Christ, as in other things; as Moses was a mediator between God and the people of Israel, so is Christ between God and his people. Sin is a transgression of God's law, a breaking of his statutes, which he has set as an hedge, fence, or wall, about man; and this has made a breach between God and man; which lets in the wrath of God as a flood, and justice as an armed man: and terrible it is to consider there is no standing before him, and making up the breach; but Christ has interposed as a surety, made satisfaction to law and justice, and procured peace and reconciliation; and so, by his atonement and intercession, has made up the breach, appeased the wrath of God, and turned it away, and prevented the ruin and destruction of his people.

he said--namely, to Moses (Deuteronomy 9:13). With God, saying is as certain as doing; but His purpose, while full of wrath against sin, takes into account the mediation of Him of whom Moses was the type (Exodus 32:11-14; Deuteronomy 9:18-19).
Moses his chosen--that is, to be His servant (compare Psalm 105:26).
in the breach--as a warrior covers with his body the broken part of a wall or fortress besieged, a perilous place (Ezekiel 13:5; Ezekiel 22:30).
to turn away--or, "prevent"
his wrath-- (Numbers 25:11; Psalm 78:38).

Breach - God had made a wall about them; but they had made a breach in it by their sins, at which the Lord, who was now justly become their enemy, might enter to destroy them; which he had certainly done, if Moses by his prevailing intercession had not hindered him.