1. Exposition

Where else does the Bible talk about Sihon king of the Amorites?

Joshua 12:2 (ESV)

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

The defeat of Sihon is recorded in Numbers 21:21–31 and Deuteronomy 2:26–37, and that of Og in Numbers 21:33–35 and Deuteronomy 3:1–11. These two kings are often mentioned together elsewhere in the Bible, in songs (e.g., Psalm 135:11; ?) and also prayers (e.g., ?). Their defeat was a down payment on the eventual realization of Israel’s full inheritance and the certainty of God’s final victory.