Rarely does a mitzvah receive such a hakdamah, foreword, prior to presenting the actual mitzvah to Klal Yisrael. Apparently, the mitzvah of kiddush b’chorim, sanctification of the firstborn, is tied directly to the story of the Egyptian bondage and the ensuing exodus. First, we note that unlike for the b’chor of an animal whose kedushah is pronounced by the declaration, Harei zeh kadosh, “This is sanctified,” this declaration does not suffice for a human firstborn. It is critical that we expend much effort in raising the infant b’chor to achieve Heavenly kedushah. This is the idea behind prefacing the mitzvah…