Verse 23. - And he came to Jahaz, or Jahzah, a place of which we know nothing.

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.And Sihon would not suffer Israel to pass through his border,.... Because he could not trust them, and confide in the promises they made, and thought it not safe to let such a body of people into any part of his dominions, Judges 11:20 and chiefly because his heart was hardened by the Lord, that he might be delivered into the hands of Israel, as was determined, Deuteronomy 2:30,

but Sihon gathered all his people together; all that were able to bear arms out of his cities, and which made no doubt a very numerous and powerful army; but then these being defeated, as they were, it became more easy to the Israelites to take their cities, where there were none left but women and children:

and went out against Israel into the wilderness; the wilderness of Kedemoth; not content to reject a peaceable message, he went out in an hostile manner against Israel, even out of his own dominions; so that he was the aggressor and unprovoked, which made his ruin appear the more just, and the children of Israel to have a better claim to his country conquered by them:

and he came to Jahaz; a frontier town in the land of Moab, see Isaiah 15:4 and which, according to Bunting (p), was sixteen miles from Abarim:

and fought against Israel; at the above place, where they had a pitched battle.

(p) Travels of the Patriarchs, p. 83.