The Prayers of the Forefathers
וישכם אברהם בבקר אל המקום אשר עמד שם את פני ה'. “Avraham rose in the morning, and came to the place where he stood before Hashem (in prayer).” From here we learn that Avraham Avinu instituted the morning prayer of Shacharis. Similarly, Yitzchak instituted Mincha, and Yaakov instituted Maariv.[1] A hint for this can…