Counting of the Omer
VaYikra 23:15 And you shall count unto you from the morrow after The Shabbat, from the day that you brought the omer of the waving; seven Sabbaths shall there be complete; 16 even unto the morrow after the seventh Shabbat shall you number fifty days; and you shall present a Minkah Khadashah unto יהוה .
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