Numbers 21:13-14 From there they removed , and encamped on the other side of Arnon , which is in the wilderness that cometh out of the borders of the Amorites : for Arnon is the border of Moab , between Moab and the Amorites.

Webster_Strongs⁽ⁱ⁾

13 H5265 [H8804] From there they removed H2583 [H8799] , and encamped H5676 on the other side H769 of Arnon H4057 , which is in the wilderness H3318 [H8802] that cometh out H1366 of the borders H567 of the Amorites H769 : for Arnon H1366 is the border H4124 of Moab H4124 , between Moab H567 and the Amorites.

14 H559 [H8735] Therefore it is said H5612 in the book H4421 of the wars H3068 of the LORD H2052 , What he did H5492 in the Red sea H5158 , and in the brooks H769 of Arnon,