Numbers 21:13 ASV

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

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

¹³  From 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.

¹⁴  Wherefore it is said in the book of the Wars of Jehovah, Vaheb in Suphah, And the valleys of the Arnon,

¹⁵  And the slope of the valleys That inclineth toward the dwelling of Ar, And leaneth upon the border of Moab.