Deuteronomy 34:10 And there arose not a prophet since in Israel like unto Moses, whom the LORD knew face to face,
Moses goes up into the mountain. Nothing is wrong with him. He has lived life to the fullest. He is not weak. He is old but with all of his former strength. It is simply his time to go on to heaven. He had made mistakes that cost him all that he could have had but now in death God reminds us that He has not talked to anyone like He did Moses. Moses had a face to face relationship with God. God spoke to Him face to face. I do not think there could be anything greater said about a man than that. He knew God intimately. Knowing God intimately, however, doesn’t give you a “get out of jail free” card! Here Moses is dying just before they get to the promised land!