How to Celebrate Biblical feasts
It is very common for Christians, when they are reminded of the feasts of Israel, to see them as a culture foreign to our culture or customs. But if we examine the Word of God, we realize that the feasts of the Jews are really God's feasts, and therefore, they belong to God.
To celebrate the Jewish feasts is not to turn away from the grace and work of salvation, but to come to a better understanding and appreciation of Christ's work on the cross. The early Christians used to keep these same feasts as a reminder of the deliverance from sin they receive through the free grace of Jesus Christ. Once we realize the great importance of the biblical feasts for humans, and the priceless value they have for today's world, it is important to understand more about how to celebrate them.
For example, some of the biblical feasts have specific forms of celebration that make them different from others. Only in the Passover, we partake of bread and wine as symbols of Christ's death. In the Feast of Unleavened Bread, God commands us to remove the leaven from our homes (both natural and sinful) and the Day of Atonement is unique in the sense that it is the only feast that is kept with fasting and prayer.
The proper celebration of these feasts includes their recognition and due observance of the precepts that distinguish them, which are intended to teach us spiritual lessons and exemplify the life of Christ. Remember that these days are holy to God, they are the solemn feasts of the Eternal, which He proclaims as holy convocations (Leviticus 23:2).