Numbers 21:21, 23
Then Israel sent messengers to Sihon king of the Amorites, saying, . . .

Deuteronomy 2:30-36
But Sihon king of Heshbon would not let us pass through, for the LORD your God had made his spirit stubborn and his heart obstinate, that He might give him into your hands, as is the case this day. . . .

Deuteronomy 29:7
When you reached this place, Sihon king of Heshbon and Og king of Bashan came out against us in battle, but we defeated them.