Numbers 21:23-30
21:23 But Sihon did not permit Israel to pass through his border; he gathered all his forces together and went out against Israel into the wilderness. When he came to Jahaz, he fought against Israel.
21:24 But the Israelites defeated him in battle and took possession of his land from the Arnon to the Jabbok, as far as the Ammonites, for the border of the Ammonites was strongly defended.
21:25 So Israel took all these cities; and Israel settled in all the cities of the Amorites, in Heshbon, and in all its villages.
21:26 For Heshbon was the city of King Sihon of the Amorites. Now he had fought against the former king of Moab and had taken all of his land from his control, as far as the Arnon.
21:27 That is why those who speak in proverbs say, “Come to Heshbon, let it be built.
Let the city of Sihon be established!
21:28 For fire went out from Heshbon,
a flame from the city of Sihon.
It has consumed Ar of Moab
and the lords of the high places of Arnon.
21:29 Woe to you, Moab.
You are ruined, O people of Chemosh!
He has made his sons fugitives,
and his daughters the prisoners of King Sihon of the Amorites.
21:30 We have overpowered them;
Heshbon has perished as far as Dibon.
We have shattered them as far as Nophah,
which reaches to Medeba.”