These are the initial instructions on feasts. Later on there were seven or eight when you include Purim and Chanukkah. For now our concern is for the first three feasts: the Passover, Feast of Unleavened Bread and the First Fruits. These feasts are also discussed in details in Leviticus 23. The word ”feasts” in Hebrew means appointed times. Here is God setting a calendar of events to be fulfilled in Christ Jesus. These three festivals here were to occur in Spring. The remaining were to happen during the fall. The Spring feasts have already happened in the New Testament calendar. The Fall feasts are yet to happen, Jesus Christ is that blessed hope( Titus 2:13 ). The Passover represents the Messiah as our Passover lamb as we pass from sin into life. His blood is the final sacrifice(1Cor.5:7). The feast of unleavened bread describes Christ’s sinless life, making him Gods perfect sacrifice for sin. The first fruits points to the resurrection of Jesus as the first fruits of the righteous ( 1Cor.15:20). Jill Shannon has done a beautiful work in this titled: A Prophetic Calendar: The Feasts of Israel. If God has a schedule for the world and signifies this by these festivals, He has a plan for your life. The ultimate is for your life to fit into Gods grand plan. Your life is meant for celebration as you transit from darkness into life at your salvation.
Three times thou shalt keep a feast unto me in the year. Exodus 23:14 KJV