צו את אהרן ואת בניו לאמר
The Torah begins the parshah with the laws concerning the Korban Olah, Elevation/Burnt Offering, in which the entire animal is burnt on the Altar. While the Torah introduces the laws of korbanos with the word v’amarta, “and you should say,” it introduces the Korban Olah with the more emphatic tzav, “command.” Rashi explains that this implies that the Torah is urging the Kohanim to be especially zealous in carrying out this service and to make a point to underscore this exhortation to future generations of Kohanim. Rabbi Shimon (Kiddushin 29a) presents an additional caveat that this exhortation is especially relevant…