Leviticus 23:16

And ye shall eat neither bread, nor parched corn, nor green ears, until the selfsame day that ye have brought an offering unto your God: [it shall be] a statute for ever throughout your generations in all your dwellings.

And ye shall count unto you from the morrow after the sabbath, from the day that ye brought the sheaf of the wave offering; seven sabbaths shall be complete:

Ye shall bring out of your habitations two wave loaves of two tenth deals: they shall be of fine flour; they shall be baken with leaven; [they are] the firstfruits unto the LORD.

And ye shall offer with the bread seven lambs without blemish of the first year, and one young bullock, and two rams: they shall be [for] a burnt offering unto the LORD, with their meat offering, and their drink offerings, [even] an offering made by fire, of sweet savour unto the LORD.