(19) Then ye shall sacrifice.--Better, and ye shall sacrifice. They were, moreover, to offer a goat for a sin offering, and two lambs for a peace offering. Hence Josephus, who was an eye-witness to the Temple service, in summing up the number of animal sacrifices on this festival, says that there were fourteen lambs, three young bullocks, and three goats, the number two instead of three goats being manifestly a transcriber's error (Antiq. III., 10:6). The two statements, therefore, viz., the one in the passage before us, and the other in Numbers 28:27, according to the authorities during the second Temple, refer to two distinct sacrifices. The one before us speaks of the sacrifices which are to accompany the wave loaves, whilst the order in Numbers refers to the properly appointed sacrifices for the festival. Those prescribed in Numbers were offered in the wilderness, whilst those prescribed here were only to be offered when the Israelites entered the Promised Land.

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.Then ye shall sacrifice one kid of the goats for a sin offering,.... Which was for the sin of the whole congregation, typical of Christ, whose soul was made an offering for sin; in virtue of which all other sacrifices become acceptable to God, and believers enjoy the fruits and blessings of divine grace:

and two lambs of the first year for a sacrifice of peace offerings; which Gersom says were the most holy things, and were only slain in the north, and only eaten by males, as the rest of the holy things, and are the only peace offerings of the congregation that were offered throughout the whole year.