Judges 11:21

21 But the LORD God of Israel handed Sihon and all his people over to Israel. Israel defeated them and took possession of all the land of the Amorites who lived there.

Judges 11:21 Meaning and Commentary

Judges 11:21

And the Lord God of Israel delivered Sihon and all his people
into the hand of Israel
So that as Sihon, his people, and his country, fell into the hands of Israel through the victory the Lord gave them over him, they had a divine right to the land now in dispute:

and they smote them:
destroyed him and all his people, as they were ordered to destroy the seven nations of Canaan, of which the Amorites were one, ( Deuteronomy 7:1 ) ,

so Israel possessed all the land of the Amorites, the inhabitants of
that country;
by means of the above victory they came into the lawful and rightful possession of all the land that belonged to the Amorites, who were at that time, and none else, the inhabitants of it; and therefore the Ammonites could have no claim to it, nor was any made till now.

Judges 11:21 In-Context

19 "Then the people of Israel sent messengers to King Sihon of the Amorites. Sihon ruled from Heshbon. The people of Israel said to him, 'Please let us go through your land to our own.'

20 But Sihon did not trust the Israelites enough to let them go through his territory. Sihon assembled all his troops. He camped at Jahaz and attacked Israel.

21 But the LORD God of Israel handed Sihon and all his people over to Israel. Israel defeated them and took possession of all the land of the Amorites who lived there.

22 Israel took all the Amorite territory from the Arnon River to the Jabbok River and from the desert to the Jordan River.

23 "The LORD God of Israel forced the Amorites out of the way of his people Israel. So what right do you have to take it back?