Joshua 13:10

and all the cities of Sihon the king of the Amorites, who reigned at Heshbon, to the border of the children of Ammon;

Numbers 21:24-26

And Israel smote him with the edge of the sword, and took possession of his land from the Arnon to the Jabbok, even unto the children of Ammon; for the border of the children of Ammon was strong.

Treasury of Scripture Knowledge did not add