Deuteronomy 2:30-34

But Sihon king of Heshbon was not willing for us to pass through his land; for the Lord your God hardened his spirit and made his heart obstinate, in order to hand him over to you, as he is today.

And the Lord said to me, ‘See, I have begun to turn Sihon and his land over to you. Begin taking possession, so that you may possess his land.’

“Then Sihon came out with all his people to meet us in battle at Jahaz.

And the Lord our God turned him over to us, and we defeated him with his sons and all his people.

So we captured all his cities at that time and utterly destroyed the men, women, and children of every city. We left no survivor.