In Deuteronomy 2, Moses talks about Israel’s relatives in Canaan (Edom, Moab, and Ammon) and the giants they faced to get their land. In this chapter, Moses reveals two things. First, they have no reason to fear the giants dwelling among the Canaanites, as these are only a remnant of the Rephaites (giants) who were there before. The rest of whom were previously defeated by Israel’s relatives, so they are not immortal, nor is defeating them impossible. Second, the promised land is a specific geographical section that God will give to the Israelites, and they shouldn’t attempt to take land from their relatives unless God hands it over, as that is their allotted portion.