Numbers 32:34

32:34 The Gadites rebuilt Dibon, Ataroth, Aroer,

Deuteronomy 2:36

2:36 From Aroer, which is at the edge of Wadi Arnon (it is the city in the wadi), all the way to Gilead there was not a town able to resist us – the Lord our God gave them all to us.

Joshua 13:15-21

13:15 Moses assigned land to the tribe of Reuben by its clans. 13:16 Their territory started at Aroer (on the edge of the Arnon Valley) and included the city in the middle of the valley, the whole plain of Medeba, 13:17 Heshbon and all its surrounding cities on the plain, including Dibon, Bamoth Baal, Beth Baal Meon, 13:18 Jahaz, Kedemoth, Mephaath, 13:19 Kiriathaim, Sibmah, Zereth Shahar on the hill in the valley, 13:20 Beth Peor, the slopes of Pisgah, and Beth Jeshimoth. 13:21 It encompassed all the cities of the plain and the whole realm of King Sihon of the Amorites who ruled in Heshbon. Moses defeated him and the Midianite leaders Evi, Rekem, Zur, Hur, and Reba (they were subjects of Sihon and lived in his territory).

Isaiah 17:2

17:2 The cities of Aroer are abandoned.

They will be used for herds,

which will lie down there in peace.