23:21 An holy convocation - A sabbath or day of rest, called pentecost; which was instituted, partly in remembrance of the consummation of their deliverance out of Egypt by bringing them thence to the mount of God, or Sinai, as God had promised, and of that admirable blessing of giving the law to them on the 50th day, and forming them into a commonwealth under his own immediate government; and partly in gratitude for the farther progress of their harvest, as in the passover they offered a thank - offering to God for the beginning of their harvest. The perfection of this feast, was the pouring out of the holy spirit upon the apostles on this very day, in which the law of faith was given, fifty days after Christ our passover was sacrificed for us. And on that day the apostles, having themselves received the first - fruits of the spirit, begat three thousand souls thro' the word of truth, as the first - fruits of the Christian church.
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.