Deuteronomy 1:4-6

4 after he had slain Sihon, the king of the Amorites, who dwelt in Heshbon, and Og, the king of Bashan, who dwelt at Astaroth in Edrei;

5 on this side of the Jordan, in the land of Moab, Moses resolved to declare this law, saying,

6 The LORD our God spoke unto us in Horeb, saying, Ye have dwelt long enough in this mount;