Midrash su Levitico 23:16

1) (Vayikra 23:15) ("And you shall count for yourselves from the morrow of the Sabbath, from the day that you bring the omer of the lifting; seven complete Sabbaths shall they be."): "And you shall count for yourselves": Each one shall count for himself individually. "from the morrow of the Sabbath": from the morrow of the festival (Pesach, on the sixteenth day of Nissan). I might think, from the morrow of the (literal) Sabbath, of creation (i.e., Saturday) — R. Yossi b. R. Yehudah said: "Until the morrow of the seventh Sabbath shall you count fifty days" (Vayikra 23:16) indicates that the entire count (from Pesach until Shavuoth) will (always) be fifty days, (which would not be the case if the Sabbath of creation were meant).

7) (Vayikra 2:12): ("As a first-offering you may offer them [leaven and honey] up to the L–rd"): "As a first-offering" (the two loaves were leavened, and the first-fruits contained the honey of fruits and dates.): — that they (the two loaves) be first of all the meal-offerings (of the year, no meal-offering of the new grain being brought before the two loaves are offered), as it is written (Vayikra 23:16): "And you shall offer a new meal-offering to the L–rd" — that it be the newest of all the meal-offerings. This tells me (that it precedes) only a meal-offering of wheat (the two loaves being of wheat.) Whence do I derive that it precedes even) a meal-offering of barley (such as the meal-offering of rancor [of the sotah])? From (Numbers 28:26): "And on the day of first-fruits, when you offer a new meal-offering to the L–rd, in your (festival of) weeks (Shavuoth)." If it ("new") is not needed for a wheat meal-offering, (this already having been written), understand it as applying to a barley meal-offering (i.e., that a barley meal-offering, too, does not precede it).

7) (Vayikra 23:16) ("Until the morrow of the seventh Sabbath shall you count fifty days, and you shall offer a new meal-offering to the L–rd.")