Komentaryo sa Genesis 49:2: Sforno, Radak & Rabbeinu Bahya

ושמעו אל ישראל אביכם, preserve the teachings Israel taught throughout his life. When you do that you will be entitled to call yourselves בני ישראל, “The Children of Israel.” He, on the other hand, will be proud to call himself “your father.” It means that you as well as I have contended successfully when facing challenges set for you by G’d and by man. As a result, you will not forfeit the good G’d has in store for you.

הקבצו ושמעו, this was the introduction to his prophetic utterances, just as in Moses’ parting speech to the nation the words האזינו השמים והארץ (Deut. 32,1) were the opening line. The prophetess Devorah in her victory song extolling G’d, (Judges 5,3) also began with a similar opening, i.e. שמעו מלכים, “listen, pay attention, kings!”

הקבצו ושמעו, “assemble and listen!” Yaakov refers to both of his names when addressing his children. He speaks of “Yaakov” when referring to his בנים, children, as at the time when his sons were still children he had not yet been given the name “Yisrael.” When he refers to himself as simply “your father,” he uses his name “Yisrael.” It is also possible to understand the words אביכם ישראל as a reference to “your Heavenly father O Israel.” In that event Yaakov introduces his blessings by exhorting his sons to remain loyal to G’d, who is known in Rabbinic terms as ישראל סבא, “grandfather (of) Israel.” This would account for the repetition of the names Yaakov and Yisrael respectively in these two verses.