Deuteronomy 1:2-4

2 ([There are] eleven days' [journey] from Horeb by the way of Mount Seir unto Kadeshbarnea.)

3 And it came to pass in the fortieth year, in the eleventh month, on the first [day] of the month, [that] Moses spoke unto the sons of Israel, according unto all that the LORD had commanded him regarding them;

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;