שור או כשב או עז כי יולד... ירצה לקרבן אשה לד'
The Yalkut Shimoni teaches us why the above three animals (ox, sheep, goat) were selected to serve as Korbanos, sacrifices. The ox was chosen in the merit of Avraham Avinu who, in the course of preparing dinner for his “Heavenly” guests, ran to bring for them an ox. [V’el ha’bakar ratz Avraham, “And to the ox Avraham ran” (Bereishis 18:7)]. Yitzchak Avinu’s z’chus, merit, catalyzed the designation of the sheep as a sacrifice. [Va’yar v’hinei ayil neechaz ba’svach b’karnav, “And he raised his eyes and saw, and behold! A ram, afterwards caught in the thicket” (Bereishis 22:13)]. When Yaakov Avinu…