Deuteronomy 1:2-4

2 It is eleven days’ journey from Horeb by way of Mount Seir to Kadesh-barnea.

3 Now Moses spoke to Bnei-Yisrael, according to all ADONAI had commanded him for them — in the fortieth year, in the eleventh month, on the first day of the month,

4 after he had struck down Sihon king of the Amorites who lived in Heshbon, and Og king of the Bashan who lived in Ashtaroth and Edrei.