Numbers 21:10-13

¹⁰And the children of Israel journeyed, and encamped in Oboth.

¹¹And they journeyed from Oboth, and encamped at Iye-abarim, in the wilderness which is before Moab, toward the sunrising.

¹²From thence they journeyed, and encamped in the valley of Zered.

¹³From thence they journeyed, and encamped on the other side of the Arnon, which is in the wilderness, that cometh out of the border of the Amorites: for the Arnon is the border of Moab, between Moab and the Amorites.