1. And when king Arad the Canaanite. It is not altogether agreed among commentators who this king Arad was. Some think that he was an Amalekite, but this error is refuted by the fact that the Amalekites had already attempted in vain to interrupt the journey of the people.

2. And Israel vowed a vow unto the Lord. This was a manifestation of piety, when they had sustained a loss, not to cast away hope, nor to murmur against God; but to encourage themselves by entreating His aid.

4. And they journeyed from mount Hor. This also is narrated in their praise, that they bore the weariness of a long and circuitous march, when they were already worn down by their wanderings for forty years.

5. And the people spake against God and against Moses. Either because they murmured against God in the person of Moses, or else because their impiety broke forth to such a furious extent, that they openly blasphemed against God; and this latter opinion is most in accordance with the words, because…

6. And the Lord sent fiery serpents. Their ingratitude was justly and profitably chastised by this punishment; for they were practically taught that it was only through God’s paternal care that they had been previously free from innumerable evils, and that He was possessed of manifold forms of…

8. Make thee a fiery serpent. Nothing would, at first sight, appear more unreasonable than that a brazen serpent should be made, the sight of which should extirpate the deadly poison; but this apparent absurdity was far better suited to render the grace of God conspicuous than as if there had been…

10. And the children of Israel set forth. Moses does not here enumerate all the stations, which will be mentioned hereafter, when he recapitulates them all separately and in order: for, in hastening to record certain memorable circumstances, he passes over those of minor importance, which, however,…

13. From thence they removed, and pitched. I will presently add, what Moses relates in Deuteronomy respecting the Moabites and Ammonites. Since here he only briefly touches upon the main facts, he only specifies that the people came to the borders of their enemies, where it was necessary to give…

16. And from thence they went to Beer. Some think that a circumstance is here narrated, which had never been mentioned before, since a song is recorded, which we do not find elsewhere.

Num. 21:21. And Israel sent messengers. The second narration, which I have subjoined from Deuteronomy, is the fuller; nevertheless, a question arises from it, for what reason this embassy was sent to king Sihon, whose kingdom was already devoted to the Israelites: for it seems to be altogether…

Num. 21:25 And Israel took all these cities. As if speaking of something present, he uses the demonstrative pronoun, and says, “these cities,” just as if he were pointing them out to the eyes of his readers.

26. For Heshbon was the city of Sihon. It is not without cause that Moses relates how the country near Heshbon had passed into the hands of the Amorites, because a long time afterwards this was sought for as a pretext for war by the Ammonites, when they saw that the people were brought into a low…

27. Wherefore, they that speak in proverbs. That is, an old saying, or proverbial sentence remains, and is well known. The song, however, appears to have been composed in the character of those who, when prepared to engage in war, mutually exhorted each other, “Come into Heshbon,” i.e., run to the…

33. And they turned and went up. Here there is another victory of the people described, wherein they again experienced the continued favor of God, in order that they may be aroused to greater alacrity, and courageously prepare themselves for farther progress; for they might confidently expect that,…

35. And the Lord said, unto Moses. God first of all exhorts His people to confidence. He then commands that the men as well as the cities and villages should be destroyed, so that nothing should be preserved except the booty.