48 That same day the Lord said to Moses, 49 Go up into this mountain of Abarim, to Mount Nebo in the land of Moab opposite Jericho; there you may see the land of Canaan, which I am giving to the children of Israel for their heritage: 50 And let death come to you on the mountain where you are going, and be put to rest with your people; as death came to Aaron, your brother, on Mount Hor, where he was put to rest with his people: 51 Because of your sin against me before the children of Israel at the waters of Meribath Kadesh in the waste land of Zin; because you did not keep my name holy among the children of Israel. 52 So you will see the land before you, but you will not go into the land which I am giving to the children of Israel.
Matthew Henry's Commentary on Deuteronomy 32:48-52
Commentary on Deuteronomy 32:48-52
(Read Deuteronomy 32:48-52)
Now Moses had done his work, why should he desire to live a day longer? God reminds him of the sin of which he had been guilty, for which he was kept from entering Canaan. It is good for the best of men to die repenting the infirmities of which they are conscious. But those may die with comfort and ease, whenever God calls for them, notwithstanding the sins they remember against themselves, who have a believing prospect, and a well-grounded hope of eternal life beyond death.