Omer offering

The offering consisted of one omer of freshly harvested grain, and was waved in the Temple.

[1] It was offered on Passover, and signaled the beginning of the 49-day counting of the Omer (which concluded with the Shavuot holiday), as well as permission to consume chadash (grains from the new harvest).

11 He shall wave the sheaf before the Lord for you to be accepted; on the day after the sabbath the priest shall wave it.The offering containing an omer-measure of barley, described as reishit ketzirchem ("the beginning of your harvest").

[3] Josephus describes the processing of the offering as follows: After parching and crushing the little sheaf of ears and purifying the barley for grinding, they bring to the altar an issaron for God, and, having flung a handful thereof on the altar, they leave the rest for the use of the priests.

[4]The leftover of the korban are kept by the kohen and was listed as one of the twenty-four priestly gifts.