Jesus was crucified on Passover, becoming our Passover Lamb, who takes away the sins of the world. The very next day, begins the Feast of Unleavened Bread. Jesus is the Bread of Life and begins this feast "in the belly of the earth", a clear reference to bread being devoured, unleavened bread - meaning bread without sin. Three days later, the first day after the first Sabbath after the Passover, Christ rose again on a day set aside by God as First Fruits. This was the day when the Israelites were commanded to present the first of their harvest before YHWH. Jesus is the First Fruits of the church age, the first resurrection. Christ is called the First Fruits by the Apostle Paul in I Corinthians 15, where Paul discusses the resurrection of the Messiah. Jesus fulfilled the Feast of Passover by His death and fulfilled the Feast of First Fruits by His resurrection. The birth of the Church, 49 days later, fulfills the Feast of Weeks. There are 7 major Feasts commanded by God for Israel to observe, 4, the Spring feasts, have been fulfilled by the death, burial, resurrection of Christ and the birth of the Church. Three Fall feasts are yet to be fulfilled by the return of Christ - Trumpets, Atonement, and Booths.
All of the Spring feasts found their fulfillment outside the church age, meaning that the church did not exist when these feasts were fulfilled by Christ. The fulfillment of the 4th and final Spring feast actually inaugurated the Church age. The reason being is that these Feasts were given specifically to Israel, not the Church. As the children of Israel were about to enter into the Promised Land, God dictated to Moses these feast to be observed by "all your generations." When we realize that all 7 feasts were specifically given, by God, to Israel, to be observed by "all your generations", and that the first 4 feasts found their fulfillment before the church existed, it is reasonable to deduce that the final 3 feasts will also be fulfilled during a time when the church is not in existence. The 3 fall feasts were given by God to Israel and belong to Israel, not the Church. I believe that at the fulfillment of the Feast of Trumpets, the church age will end and God will begin the 70th week of Daniel, a time referred to by the prophet Jeremiah, as the time of Jacob's trouble. This would be the time known to the Church as the Seven Year Tribulation.
I would like to take the time to focus specifically on the Feast of Weeks, to demonstrate that the Church does not replace Israel, but is a new and different thing that is given the same blessings and inclusion as Israel. Inclusion into the family of God, designated as "saints" and "the elect" but not the fullness of the saints or the elect, who are specifically any one who responds to God according to the dispensational program in which they happen to live. In each age, God required faith, but that faith was demonstrated differently in each age. Adam's faith was demonstrated by abstaining from the fruit of good and evil, Abraham's faith was demonstrated by his obeying God's calling, up to and including the offering of his own son, Isaac, as a sacrifice, Israel's faith was determined by the observance of the Law, the church age people are called to trust in the sacrifice of Christ and to live transformed lives, and after the church age, according to Jesus in Mathew 25 and James, the brother of Christ, we see faith being demonstrated as proper treatment of the poor and persecuted. All these periods of time produced saints. Saints are not exclusively the church, nor are individual members of the church specifically the elect, but corporately grafted into election, which, I believe, specifically belongs to Israel as a nation. (that will be addressed in a different blog on a different day)
In Leviticus 23:15-21, we see God's intricate directions to Moses, concerning the Feast of Weeks. The First thing that stands out to me is in verse 15: "You shall count seven full weeks from the day after the Sabbath, from the day that you brought the sheaf of the wave offering. Seven is seen in the Bible as the number of completion. That Israel is told to mark out 7 weeks from the Feast of First Fruits indicates that this is a completion of something. I posit that this instruction was given to Israel to indicate the end of the age of the Law. This becomes more evident when we examine the next verse along with the events of Acts 2.
Lev 23:16 You shall count fifty days to the day after the seventh Sabbath. Then you shall present a grain offering of new grain to the LORD. We see that one day after the completion of 7 weeks, the nation of Israel is commanded to observe the Feast of Weeks. In other words, after 7 Sabbaths, the next day is a feast unto the Lord. The significance to us is the events recorded in Acts 2 in relation to this very observance.