Numbers 21:24

24 aAnd Israel defeated him with the edge of the sword and took possession of his land from the Arnon to the bJabbok, as far as to the Ammonites, for the border of the Ammonites was strong.

Deuteronomy 2:37

37Only to the land of the sons of Ammon you did not draw near, that is, to all the banks of the river cJabbok and the cities of the hill country, whatever the Lord our God had forbidden us.

Deuteronomy 3:16

16and to the Reubenites dand the Gadites I gave the territory from Gilead as far as the Valley of the Arnon, with the middle of the valley as a border, as far over as the river Jabbok, ethe border of the Ammonites;

Joshua 12:2

2 fSihon king of the Amorites who lived at Heshbon and ruled from Aroer, which is on the edge of the Valley of the Arnon, and gfrom the middle of the valley as far as the hriver Jabbok, the boundary of the Ammonites, that is, half of Gilead,

Judges 11:13

13And the king of the Ammonites answered the messengers of Jephthah, i“Because Israel on coming up from Egypt took away my land, from the jArnon to the kJabbok and to the Jordan; now therefore restore it peaceably.”
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