Hesabu 21 : 13 Numbers chapter 21 verse 13

Kutoka huko wakasafiri, wakapanga upande wa pili wa Arnoni, ulio jangwani, utokao katika mpaka wa Waamori; maana, Arnoni ndio mpaka wa Moabu, kati ya Moabu na Waamori.
soma Mlango wa 21

From there they traveled, and encamped on the other side of the Arnon, which is in the wilderness, that comes out of the border of the Amorites: for the Arnon is the border of Moab, between Moab and the Amorites.