Israel Conquers Sihon

21 Israel sent messengers to Sihon king of the Amorites, saying, 22 “Let me pass through your land: we will not turn aside into field, or into vineyard; we will not drink of the water of the wells: we will go by the king’s highway, until we have passed your border.” 23 Sihon would not allow Israel to pass through his border: but Sihon gathered all his people together, and went out against Israel into the wilderness, and came to Jahaz; and he fought against Israel. 24 Israel struck him with the edge of the sword, and possessed his land from the Arnon to the Jabbok, even to the children of Ammon; for the border of the children of Ammon was strong. 25 Israel took all these cities: and Israel lived in all the cities of the Amorites, in Heshbon, and in all its towns. 26 For Heshbon was the city of Sihon the king of the Amorites, who had fought against the former king of Moab, and taken all his land out of his hand, even to the Arnon. 27 Therefore those who speak in proverbs say,

“Come to Heshbon.
Let the city of Sihon be built and established; 28 for a fire has gone out of Heshbon,
a flame from the city of Sihon.
It has devoured Ar of Moab,
The lords of the high places of the Arnon. 29 Woe to you, Moab!
You are undone, people of Chemosh!
He has given his sons as fugitives,
and his daughters into captivity,
to Sihon king of the Amorites. 30 We have shot at them.
Heshbon has perished even to Dibon.
We have laid waste even to Nophah,
Which reaches to Medeba.”

Israel Conquers Og of Bashan

31 Thus Israel lived in the land of the Amorites. 32 Moses sent to spy out Jazer; and they took its towns, and drove out the Amorites who were there. 33 They turned and went up by the way of Bashan: and Og the king of Bashan went out against them, he and all his people, to battle at Edrei. 34 Yahweh said to Moses, “Don’t fear him: for I have delivered him into your hand, and all his people, and his land; and you shall do to him as you did to Sihon king of the Amorites, who lived at Heshbon.” 35 So they struck him, and his sons and all his people, until there was none left him remaining: and they possessed his land.

Matthew Henry's Commentary on Numbers 21:21-35

Commentary on Numbers 21:21-35

(Read Numbers 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.