Comentario citado sobre Números 7:42

נסעים אנחנו, "we are about to commence our journey, etc." Why did Moses use this introduction? Yitro knew that the Israelites were about to journey towards the land of Canaan! The Sifri on our verse, apparently aware of this question, says that Moses meant to emphasise that a single journey would suffice to bring the Israelites to their ultimate destination. We may see confirmation of this in Moses using the word אותו, "it," when referring to the place the journey would lead to. This word was quite unnecessary. Moses clearly referred only to to the land of Canaan seeing that G'd had never promised the patriarchs that the Israelites would inherit the lands of Sichon and Og. He meant to stress that there would be only that one journey. Another meaning of what Moses might have referred to was that the words אתן לכם referred to the lands of Sichon and Og which G'd would give to the Israelites of the present generation without having already allocated it to the patriarchs (compare what we wrote on Numbers 7,42). Seeing that at that time the Israelites were on the way to Canaan via the lands of Sichon and Og, Moses did not mention the land of Canaan by name but spoke vaguely about the land that G'd said He would give to the Israelites although he had not promised this to their forefathers. He had prophetic knowledge of this although G'd had not yet mentioned any of this to the people. This in spite of Sifri 2,289 describing those lands as having been appropriated by the Israelites themselves. The fact is that G'd approved of that conquest as a land the Israelites settled in after the event.