Leviticus 23:15-21

‘And you shall count for yourselves from the day after the Sabbath, from the day that you brought the sheaf of the wave offering: seven Sabbaths shall be completed. Count fifty days to the day after the seventh Sabbath; then you shall offer a new grain offering to the LORD. You shall bring from your dwellings two wave loaves of two-tenths of an ephah. They shall be of fine flour; they shall be baked with leaven. They are the firstfruits to the LORD. And you shall offer with the bread seven lambs of the first year, without blemish, one young bull, and two rams. They shall be as a burnt offering to the LORD, with their grain offering and their drink offerings, an offering made by fire for a sweet aroma to the LORD. Then you shall sacrifice one kid of the goats as a sin offering, and two male lambs of the first year as a sacrifice of a peace offering. The priest shall wave them with the bread of the firstfruits as a wave offering before the LORD, with the two lambs. They shall be holy to the LORD for the priest. And you shall proclaim on the same day that it is a holy convocation to you. You shall do no customary work on it. It shall be a statute forever in all your dwellings throughout your generations.