A city of Moab - Or, Ir-Moab, probably the same with Ar-Moab Numbers 21:15. As Balaam in his journey would avoid the districts occupied by the Israelites, he must have approached this city from the east, by the course of the Nahaliel; and in the name Balu'a, still borne by one of the upper branches of this stream, there is perhaps a reminiscence of the name of the prophet.

And the angel - stood in a narrow place - In this carriage of the angel says Mr. Ainsworth the Lord shows us the proceedings of his judgments against sinners: First he mildly shakes his rod at them but lets them go untouched. Secondly he comes nearer and touches them with an easy correction as it were wringing their foot against the wall. Thirdly, when all this is ineffectual, he brings them into such straits, that they can neither turn to the right hand nor to the left, but must fall before his judgments, if they do not fully turn to him.

And the angel of the Lord went further, and stood in a narrow place,.... More narrow than the other, at a further distance:

where was no way to turn, either to the right hand or to the left; it was so strait and close a place that the angel filled the whole breadth of it, that there was no passing him; so that there was no getting forward nor backward; not forward, because the angel filled up the way, and there was no slipping by him; nor backward, because it could not turn itself to the right or left.

The angel moved still farther, and stationed himself in front of him, in so narrow a pass, that there was no room to move either to the right or to the left. As the ass could neither turn aside nor go past this time, she threw herself. down. Balaam was still more enraged at this, and smote her with the stick (בּמקּל, which he carried; see Genesis 38:18).

And the angel of the LORD went further, and stood in a narrow place, where was no way to turn either to the right hand or to the left.

22:22-35 We must not think, that because God does not always by his providence restrain men from sin, therefore he approves of it, or that it is not hateful to him. The holy angels oppose sin, and perhaps are employed in preventing it more than we are aware. This angel was an adversary to Balaam, because Balaam counted him his adversary; those are really our best friends, and we ought so to reckon them, who stop our progress in sinful ways. Balaam has notice of God's displeasure by the ass. It is common for those whose hearts are fully set in them to do evil, to push on violently, through the difficulties Providence lays in their way. The Lord opened the mouth of the ass. This was a great miracle wrought by the power of God. He who made man speak, could, when he pleased, make the ass to speak with man's voice. The ass complained of Balaam's cruelty. The righteous God does not allow the meanest or weakest to be abused; but they shall be able to speak in their own defence, or he will some way or other speak for them. Balaam at length has his eyes opened. God has many ways to bring down the hard and unhumbled heart. When our eyes are opened, we shall see the danger of sinful ways, and how much it was for our advantage to be crossed. Balaam seemed to relent; I have sinned; but it does not appear that he was sensible of this wickedness of his heart, or willing to own it. If he finds he cannot go forward, he will be content, since there is no remedy, to go back. Thus many leave their sins, only because their sins have left them. The angel declared that he should not only be unable to curse Israel, but should be forced to bless them: this would be more for the glory of God, and to his own confusion, than if he had turned back.