R. Shimon b. Elazar says: One verse states "Six days shall you eat matzoth," and another, (Shemoth 13:6) "Seven days shall you eat matzoth!" — Six of the new grain (after the omer offering on the second day); seven of the old grain.
(Devarim 16:8) "and on the seventh day is a holding back (atzereth) for the L-rd your G-d. You shall do no work." I might think that one should be "held back" all day long in the house of study; it is, therefore, written "a 'holding back' shall there be for you." How are the verses to be reconciled? Devote a portion to the house of study and devote a portion to eating and drinking.