Numbers 21:10-13

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

¹¹And they journeyed from Oboth, and encamped at 'Iye-ha'abarim, in the wilderness, which is before Moab, toward the rising of the sun.

¹²From there they set forward and encamped in the valley of Zered.

¹³From there they set forward, and encamped on the other side of Arnon, which is in the wilderness, and which cometh out of the boundary of the Emorites; for Arnon is the border of Moab, between Moab and between the Emorites.