Strung out between Passover and Shavuot like an exquisite pearl necklace are the days of the Omer – 49 in all – linking the two major festivals and, according to some commentators, forging them into one. 

One of the names of the Feast of Weeks, Shavuot, is Atzeret, meaning conclusion, recalling the seven-week journey taken by the Children of Israel from the decadent land of the pyramids to the foot of Mount Sinai, where they were to receive the living Torah. This move, from Thanatos to Eros, is highlighted by the sages through this seven week bridge that provides an elemental and evocative metaphor for the transformation from the darkness of slavery to the revelation at Sinai.

The origin and development of the Omer period are nevertheless obscure. The first reference to this seven-week period is found in the Book of Leviticus (23:9-16), where the Children of Israel are reassured that they will enter the land of Canaan and harvest their crops, from which they are to bring a symbolic Omer (two unleavened loaves made of the finest flour) to the priest in the Temple, without which they cannot eat of their produce.

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