15 And from the day after the sabbath, from the day on which you bring the sheaf of the elevation offering, you shall count off seven weeks; they shall be complete. 16 You shall count until the day after the seventh sabbath, fifty days; then you shall present an offering of new grain to the Lord. 17 You shall bring from your settlements two loaves of bread as an elevation offering, each made of two-tenths of an ephah; they shall be of choice flour, baked with leaven, as first fruits to the Lord. 18 You shall present with the bread seven lambs a year old without blemish, one young bull, and two rams; they shall be a burnt offering to the Lord, along with their grain offering and their drink offerings, an offering by fire of pleasing odor to the Lord. 19 You shall also offer one male goat for a sin offering, and two male lambs a year old as a sacrifice of well-being 20 The priest shall raise them with the bread of the first fruits as an elevation offering before the Lord, together with the two lambs; they shall be holy to the Lord for the priest. 21 On that same day you shall make proclamation; you shall hold a holy convocation; you shall not work at your occupations. This is a statute forever in all your settlements throughout your generations 22 When you reap the harvest of your land, you shall not reap to the very edges of your field, or gather the gleanings of your harvest; you shall leave them for the poor and for the alien: I am the Lord your God.

Matthew Henry's Commentary on Leviticus 23:15-22

Commentary on Leviticus 23:15-22

(Read Leviticus 23:15-22)

The feast of Weeks was held in remembrance of the giving of the law, fifty days after the departure from Egypt; and looked forward to the outpouring of the Holy Ghost, fifty days after Christ our Passover was sacrificed for us. On that day the apostles presented the first-fruits of the Christian church to God. To the institution of the feast of Pentecost, is added a repetition of that law, by which they were required to leave the gleanings of their fields. Those who are truly sensible of the mercy they received from God, will show mercy to the poor without grudging.