6On the fifteenth day of the same month begins the Feast of Unleavened Bread to the LORD. For seven days you must eat unleavened bread.
7On the first day you are to hold a sacred assembly; you are not to do any regular work.
8For seven days you are to present an offering made by fire to the LORD. On the seventh day there shall be a sacred assembly; you must not do any regular work.’”
9And the LORD said to Moses,
10“Speak to the Israelites and say, ‘When you enter the land that I am giving you and you reap its harvest, you are to bring to the priest a sheaf of the firstfruits of your harvest.
11And he shall wave the sheaf before the LORD so that it may be accepted on your behalf; the priest is to wave it on the day after the Sabbath.
12On the day you wave the sheaf, you shall offer a year-old lamb without blemish as a burnt offering to the LORD,
13along with its grain offering of two-tenths of an ephah of fine flour mixed with oil — an offering made by fire to the LORD, a pleasing aroma — and its drink offering of a quarter hin of wine.
14You must not eat any bread or roasted or new grain until the very day you have brought this offering to your God. This is to be a permanent statute for the generations to come, wherever you live.
— Leviticus 23:6-14