Numbers 21:15

21:15 and the slope of the valleys ¹ 

that extends to the dwelling of Ar, ² 

and falls off at the border of Moab.”

Numbers 34:9

34:9 The border will continue to Ziphron, and its direction will be to Hazar Enan. This will be your northern border.

[21:15]  ¹ tc There are many variations in this text, but the MT reading of something like “the descent of the torrents/valleys” is preferable, since it is describing the topography.

[21:15]  ² sn The place is unknown; it is apparently an important city in the region.