LEVITICUS 23:20-23

²⁰And the priest shall wave them with the bread of the firstfruits for a wave offering before the LORD, with the two lambs: they shall be holy to the LORD for the priest.

²¹And ye shall make proclamation on the selfsame day; there shall be an holy convocation unto you: ye shall do no servile work: it is a statute for ever in all your dwellings throughout your generations.

²²And when ye reap the harvest of your land, thou shalt not wholly reap the corners of thy field, neither shalt thou gather the gleaning of thy harvest: thou shalt leave them for the poor, and for the stranger: I am the LORD your God.

²³And the LORD spake unto Moses, saying,