Numbers 21:32

Now the sons of Reuben and the sons of Gad had an exceedingly large number of livestock. And they saw the land of Jazer and the land of Gilead, that it was indeed a place suitable for livestock,

“So I sent messengers from the wilderness of Kedemoth to Sihon king of Heshbon with words of peace, saying,

“For we have heard how Yahweh dried up the water of the Red Sea before you when you came out of Egypt and what you did to the two kings of the Amorites who were beyond the Jordan, to Sihon and Og, whom you devoted to destruction.

And their territory was Jazer, and all the cities of Gilead, and half the land of the sons of Ammon, as far as Aroer which is before Rabbah;

‘Then I brought you into the land of the Amorites who lived beyond the Jordan, and they fought with you; and I gave them into your hand, and you took possession of their land, and I destroyed them before you.

‘And Israel sent messengers to Sihon king of the Amorites, the king of Heshbon, and Israel said to him, “Please let us pass through your land to our place.”

And they crossed the Jordan and camped in Aroer, on the right side of the city that is in the middle of the valley of Gad and toward Jazer.

“You also gave them kingdoms and peoples, And apportioned them to them as a boundary. They took possession of the land of Sihon the king of Heshbon And the land of Og the king of Bashan.

“More than the weeping for Jazer I will weep for you, O vine of Sibmah! Your branches stretched across the sea, They reached to the sea of Jazer; Upon your summer fruits and your grape harvest The destroyer has fallen.