Numbers 21:11-13

Young's Literal Translation

¹¹ And they journey from Oboth, and encamp in Ije-Abarim, in the wilderness that [is] on the front of Moab, at the rising of the sun.

¹² From thence they have journeyed, and encamp in the valley of Zared.

¹³ From thence they have journeyed, and encamp beyond Arnon, which [is] in the wilderness which is coming out of the border of the Amorite, for Arnon [is] the border of Moab, between Moab and the Amorite;