

It is forbidden to burn the fats of blemished animals on the altar.
This mitzvah forbids burning the sacrificial fats (cheilev) of blemished animals upon the Mizbeach. The burning of fats and certain parts of the korban is a central ritual act meant to honor Hashem. Performing this service with a blemished animal undermines the sanctity of the avodah and profanes the altar.
Rambam explains that the Torah created four distinct prohibitions concerning blemished animals: consecrating them (337), slaughtering them (338), sprinkling their blood (339), and burning their fats (340). Each stage of sacrificial service must be preserved in holiness, with the Torah teaching that imperfection is unacceptable at any step.
Sefer HaChinuch emphasizes that Hashem’s service must radiate reverence and respect; burning the fats of unfit animals profanes His honor rather than sanctifying it. The Talmud clarifies that this act carries liability because burning on the altar is considered one of the most significant acts of avodah. Ramban teaches that this mitzvah instills a lesson: only offerings that reflect completeness and dignity are acceptable before Hashem.
Commentary & Classical Explanation:



It is forbidden to burn the fats of blemished animals on the altar.
This mitzvah forbids burning the sacrificial fats (cheilev) of blemished animals upon the Mizbeach. The burning of fats and certain parts of the korban is a central ritual act meant to honor Hashem. Performing this service with a blemished animal undermines the sanctity of the avodah and profanes the altar.
Rambam explains that the Torah created four distinct prohibitions concerning blemished animals: consecrating them (337), slaughtering them (338), sprinkling their blood (339), and burning their fats (340). Each stage of sacrificial service must be preserved in holiness, with the Torah teaching that imperfection is unacceptable at any step.
Sefer HaChinuch emphasizes that Hashem’s service must radiate reverence and respect; burning the fats of unfit animals profanes His honor rather than sanctifying it. The Talmud clarifies that this act carries liability because burning on the altar is considered one of the most significant acts of avodah. Ramban teaches that this mitzvah instills a lesson: only offerings that reflect completeness and dignity are acceptable before Hashem.
Commentary & Classical Explanation:




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