Seven feasts, rehearsed for fifteen centuries. The four spring feasts found their fulfillment in Christ: crucifixion, burial, resurrection, outpouring.
The Shadow
God did not just predict the gospel. He rehearsed it. The seven feasts of Leviticus 23 functioned like rehearsals: full-cast run-throughs of something that had not yet happened. Four in the spring, three in the fall, every year for fifteen centuries. Paul says what they were: a shadow of things to come, but the substance is of Christ. The Greek word for substance is soma, body. The feasts were the shadow; Christ is the body casting it.
The Fulfillment
Lay the spring feasts beside the gospel. Passover: the lamb was selected, examined, and slain at the appointed time; Jesus entered Jerusalem to shouts of Hosanna, was examined for days by men hunting for a flaw, and went to the cross as the Passover lambs were dying across the city. Christ, our Passover, was sacrificed for us. Unleavened Bread: bread with no trace of leaven, Scripture's picture of sin's influence; the sinless body of Jesus lay in the tomb without corruption. First Fruits: the first sheaf lifted on the day after the Sabbath; on that day Christ rose, the firstfruits of those who have fallen asleep. Pentecost: fifty days later, the harvest feast; fifty days after the resurrection, the Spirit fell and three thousand came in. Four feasts, four events, in the same order at the appointed times. God did not schedule the events to match the feasts. He created the feasts to rehearse the events.
Christ has fulfilled the substance of every feast, and many interpreters see the fall feasts, Trumpets, Atonement, and Tabernacles, as also anticipating dimensions of His future consummation. If the spring feasts are any indication, whatever remains will arrive on schedule.
Him All Along
The Pharisees kept the calendar with precision and crucified the One the calendar was about. Religion has always been better at keeping the schedule than recognizing the Person. What the feasts prove is not just that God is powerful but that He is deliberate: nothing about your redemption was improvised, and He has never missed an appointed time.