New Revised Standard Version
King Sihon of the Amorites who lived at Heshbon, and ruled from Aroer, which is on the edge of the Wadi Arnon, and from the middle of the valley as far as the river Jabbok, the boundary of the Ammonites, that is, half of Gilead,

Contemporary English Version
The first king that Moses and the Israelites defeated was an Amorite, King Sihon of Heshbon. The southern border of his kingdom ran down the middle of the Arnon River gorge, taking in the town of Aroer on the northern edge of the gorge. The Jabbok River separated Sihon's kingdom from the Ammonites on the east. Then the Jabbok turned west and became his northern border, so his kingdom included the southern half of the region of Gilead.

New American Bible
First, Sihon, king of the Amorites, who lived in Heshbon. His domain extended from Aroer, which is on the bank of the Wadi Arnon, to include the wadi itself, and the land northward through half of Gilead to the Wadi Jabbok at the border with the Ammonites,

Douay-Rheims Bible
Sehon king of the Amorrhites, who dwelt in Hesebon, and had dominion from Aroer, which is seated upon the bank of the torrent Arnon, and of the middle part in the valley, and of half Galaad, as far as the torrent Jaboc, which is the border of the children of Ammon.

Sehon king of the Amorrhites, who dwelt in Hesebon, and had dominion from Aroer, which is seated upon the bank of the torrent Arnon, and of the middle part in the valley, and of half Galaad, as far as the torrent Jaboc, which is the border of the children of Ammon.

Sihon

Numbers 21:23-30 And he would not grant that Israel should pass by his borders: but rather gathering an army, went forth to meet them in the desert, and came to Jasa and fought against them. . . .

Deuteronomy 2:24-37 Arise ye, and pass the torrent Arnon: Behold I have delivered into thy hand Sehon king of Hesebon the Amorrhite, and begin thou to possess his land and make war against him. . . .

Deuteronomy 3:6-17 And we utterly destroyed them, as we had done to Sehon the king of Hesebon, destroying every city, men and women and children: . . .

Nehemiah 9:22 And thou gavest them kingdoms, and nations, and didst divide lots for them: and they possessed the land of Sehon, and the land of the king of Hesebon, and the land of Og king of Basan.

Psalm 135:11 Sehon king of the Amorrhites, and Og king of Basan, and all the kingdoms of Chanaan.

Psalm 136:19,20 Sehon king of the Amorrhites: for his mercy endureth for ever. . . .

Jabbok

Genesis 32:22 And rising early, he took his two wives and his two handmaids, with his eleven sons, and passed over the ford of Jaboc.

Judges 11:13,22 And he answered them: Because Israel took away my land, when he came up out of Egypt, from the confines of the Arnon unto the Jaboc and the Jordan: now, therefore, restore the same peaceably to me. . . .