And the king of the sons of Ammon said unto the messengers of Jephthah - Because Israel took away my land, when they came up out of Egypt, from Arnon even unto the Jabbok, and unto the Jordan, - now, therefore, restore them in peace.

Yea they took possession of all the territory of the Amorites, - from Arnon, even as far as the Jabbok, and from the desert, even as far as the Jordan.