Judaism: The Temple Institute: Shma Yisrael
When Yaakov (Jacob) was reunited with his beloved son Yosef (Joseph), he understood it as the confirmation of G-d's Oneness, and recited the Shema proclamation of G-d's unity.
His twelve sons would later reconfirm G-d's Oneness by reciting the Shema, as Yaakov prepared to reveal to them his vision of the end of days.
By this very affirmation of G-d's Oneness in our world, Yaakov fulfills the promise of his other name, Yisrael.
And his children, throughout the generations, fulfill their role as witnesses to G-d's abiding and eternal unity.