.
Shem Mishmuel describes Ha’azinu as;
A poem which Moshe Rabbeinu recited to Klal Yisrael… It discusses the uniqueness of Klal Yisrael, their future, how they should conduct themselves, how they will stray, and how Hashem will treat them mercifully. (Shem Mishmuel, Rabbi Shmuel Bornstein, Parsha Ha’azinu, pge 433)
He further indicates that there has been connection, since the Mabul — “the great Flood” between the original 70 souls of B’nai Yisrael and the 70 primary nations which emerged after the Mabul to where the B’nai Yisrael, were they to achieve individual and collective full spiritual potential and righteousness, would impact for good upon the nations to which they were connected.