Verse 22. - Let me pass through thy land. Cf. Numbers 20:17. Israel was not commanded to spare the Amorites, indeed he was under orders to smite them (Deuteronomy 2:24), but that did not prevent his approaching them in the first instance with words of peace. If Sihon had hearkened, no doubt Israel would have passed directly on to Jordan, and he would at least have been spared for the present.

21:21-35 Sihon went with his forces against Israel, out of his own borders, without provocation, and so ran upon his own ruin. The enemies of God's church often perish by the counsels they think most wisely taken. Og, king of Bashan, instead of being warned by the fate of his neighbours, to make peace with Israel, makes war with them, which proves in like manner his destruction. Wicked men do their utmost to secure themselves and their possessions against the judgments of God; but all in vain, when the day comes on which they must fall. God gave Israel success, while Moses was with them, that he might see the beginning of the glorious work, though he must not live to see it finished. This was, in comparison, but as the day of small things, yet it was an earnest of great things. We must prepare for fresh conflicts and enemies. We must make no peace or truce with the powers of darkness, nor even treat with them; nor should we expect any pause in our contest. But, trusting in God, and obeying his commands, we shall be more than conquerors over every enemy.Let me pass through thy land,.... Through some part of it, which would have been a shorter way to the river Jordan, over which Israel was to pass into the land of Canaan; the terms proposed, or things to be observed in their passage, which they would bind themselves strictly to, are the same that were made to the king of Edom. See Gill on Numbers 20:17.