And the king of the sons of Ammon answered to the messengers of Jephthah, Because Israel took away my land when he came up out of Egypt, from the Arnon even to the Jabbok, and to the Jordan. Now therefore restore those [lands] agai

Then they went through the wilderness, and went around the land of Edom, and the land of Moab, and came by the east side of the land of Moab. And they encamped on the other side of the Arnon, but they did not come within the border

And they possessed all the border of the Amorites, from the Arnon even to the Jabbok, and from the wilderness even to the Jordan.

While Israel dwelt in Heshbon and its towns, and in Aroer and its towns, and in all the cities that are along by the side of the Arnon, three hundred years, why did ye not recover them within that time?