Numbers 21:30

Therefore those who speak in proverbs say,

“Come to Heshbon.

Let the city of Sihon be built and established;

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.

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.

Thus Israel lived in the land of the Amorites.

Moses sent to spy out Jazer. They took its villages, and drove out the Amorites who were there.

They turned and went up by the way of Bashan. Og the king of Bashan went out against them, he and all his people, to battle at Edrei.