that priests were disqualified by age too; thus, if Levites who were not disqualified by bodily blemish were nevertheless disqualified by age, priests who were disqualified by bodily blemish should surely have been disqualified by age. therefore says: "Which pertains to the Levites," and not "to the priests." One might further have supposed that the rule that Levites were disqualified by age obtained even at Shiloh and at the Temple at Jerusalem, where the Levites sang in the choir and guarded the doors of the Temple. therefore says: "To do the work of service and the work of bearing burdens," to instruct that God ordained this rule disqualifying Levites by age only when the work was that of bearing burdens upon the shoulder, the service of the Tabernacle in the wilderness, and not at the Temple at Jerusalem. Similarly, the Sifre taught that years invalidated in the case of Levites but not in the case of the priesthood. For prior to the entry into the Land of Israel, the Levites were valid from the age of 30 to the age of 50, while the priests were valid from puberty until the end of their lives. But once they came into the Land, the Levites were invalidated only by losing their voice. Elsewhere, the Sifre read , "and shall serve no more; but shall minister with their brethren in the tent of meeting, to keep the charge, but they shall do no manner of service," to teach that the Levite went back to the work of closing the doors and carrying out the tasks assigned to the sons of Gershom. Numbers chapter 9 The Gemara noted that the events beginning in , set "in the first month of the second year," occurred before the events at the beginning of the book of Numbers, which reports began in "the second month, in the second year." Rav Menasia bar Tahlifa said in Rav's name that this proved that there is no chronological order in the Torah. The Sifre concluded that records the disgrace of the Israelites, as reports the only Passover that the Israelites observed in the wilderness. Rav Naḥman bar Isaac noted that both and begin, "And the Lord spoke to Moses in the wilderness of Sinai," and deduced that just as happened (in the words of that verse) "on the first day of the second month," so too happened at the