Deuteronomy 31:2

“And he said unto them, I [am] an hundred and twenty years old this day, etc.] Whether the meaning is, that that day precisely was his birthday, is a question; it may be the sense is only this, that he was now arrived to such an age; though Jarchi takes it in the first sense, to which are objected his words in (<053114>Deuteronomy 31:14); yet it seems by (<053248>Deuteronomy 32:48) that having delivered to the children of Israel the song he was ordered this day to write, on the selfsame day he was bid to go up to Mount Nebo and die: and it is a commonly received tradition with the Jews, that Moses died on the same day of the month he was born; (see Gill on “<053407>Deuteronomy 34:7”). I can…”

“also the Lord hath said--should be "for the Lord hath said" thou shalt not go over this Jordan. While taking a solemn leave of the people, Moses exhorted them not to be intimidated by the menacing opposition of enemies; to take encouragement from the continued presence of their covenanted God; and to rest assured that the same divine power, which had enabled them to discomfit their first assailants on the east of Jordan, would aid them not less effectually in the adventurous enterprise which they were about to undertake, and by which they would obtain possession of "the land which He had sworn unto their fathers to give them."”

“I am an hundred and twenty years old - The 40 years of the wandering had passed since Moses, then 80 years old, “spake unto Pharaoh” (Exodus 7:7; Compare Deuteronomy 34:7). I can, no more go out and come in - Render I shall not longer be able to go out and come in: i. e., discharge my duties among you. There is no inconsistency with Deuteronomy 34:7. Moses here adverts to his own age as likely to render him in future unequal to the active discharge of his office as leader of the people: the writer of Deuteronomy 34:1-12, one of Moses’ contemporaries, remarks of him that up to the close of life “his eye was not dim, nor his natural force abated” Deuteronomy 31:7; i. e. that he was to the…”

“Go out and come in - Perform the office of a leader or governor, because the time of my death approaches. Deuteronomy 31:9”

“I am an: The life of Moses, the great prophet of Jehovah and lawgiver of the Jews, was exactly the same in length as the time Noah employed in preaching righteousness to the antediluvian world. These one hundred and twenty years were divided into three remarkable periods. Forty years he lived in Egypt, in the court of Pharaoh, acquiring all the learning and wisdom of the Egyptians ( Act 7:20, Act 7:23); forty years he sojourned in Midian, in a state of preparation for his great and important mission ( Act 7:29, Act 7:30); and forty years he guided, led, and governed the Israelites under the express direction and authority of God. in all 120 years. Deu 34:7; Exo 7:7; Jos 14:10, Jos 14:11; Psa…”