Commentaire de citation sur Le Deutéronome 31:2

האזינו השמים ואדברה ותשמע הארץ אמרי פי, “Listen heaven when I speak, and may the earth pay attention to the words of my mouth.” Moses addressed the heaven in direct speech, whereas he spoke of the earth in indirect speech. He meant to emphasize the fact that we are meant to feel closer to heaven than to earth, or at least that he himself felt closer to heaven on this day, the day he was going to die. Already Parshat Nitzavim as well as Parshat Vayelech were all speeches which Moses made on the day he died. This is why he repeatedly referred to היום, “this day,” both in Nitzavim (29,9) and in Vayelech (30,2). In our Parshah the expression היום occurs also (32,49) as it does in Vezot haberachah (33,1).
All of these four portions are linked to one another conceptually, and they deal with a number of important subjects which normally would require many days for the listeners to absorb. It was a miracle that they could all be dealt with on one single day.

One ... his Paschal offering and one ... as delicious food... You might ask: How does Rashi know it was Pesach? It seems the answer is: Yitzchok was born on Pesach, as Rashi explains in Parshas Vayeira (18:10). And Hashem completes the days of the righteous — they die on the same day they were born. This is as it says about Moshe (Devarim 31:2): “Today I am one hundred and twenty years old,” and Rashi explains: “Today, my days became complete. On this day I was born, and on this day I will die.” Since Yitzchok said (v. 2), “I do not know the day of my death,” i.e., perhaps I will die today, it must have been Pesach. (Maharshal)

היום THIS DAY — like the “day” which endures for ever, for though it becomes dark for a period it shines again, (cf. Midrash Tanchuma, Nitzavim 1, Sanhedrin 110b); so has He made you shine (i.e. given you periods when you have had nought but happiness) and will again make you shine; and it is just the curses and the sufferings that give you permanence and stability (נצבים) before Him. — So, too, the section preceding this (1 ff. which follows immediately after the curses) consists of comforting words: “Ye have seen all the Lord did [before your eyes in the land of Egypt unto Pharaoh, etc.]”. — Another explanation of אתם נצבים: Because the Israelites were now passing from one leader to another, from Moses to Joshua, therefore he (Moses) made them stand in ranks (מצבה) that he might address admonitions to them. Similarly did Joshua (cf. Joshua 24:1) and similarly did Samuel, who said, (I Samuel 12:7): “Now therefore take your stand (התיצבו) that I may reason with you before the Lord”, when they were leaving his hand (leadership) and were coming under the hand of Saul (cf. Midrash Tanchuma, Nitzavim 1).

And he was born on the seventh of Adar: As it is written (Deuteronomy 31:2), "A hundred and twenty years old am I today" - today completed my days and my years. The birth is worthy to atone for the death.