The Jewish calendar is filled with various special days and holy celebrations, which we are no longer required to follow as Christians. Yet, when we dig into the details of these holy days, we see allusions and foreshadowing of the Christ to come and the Christian life. In this study, we will look at how the New Testament writers and the early Christians found important lessons in the details of the Sabbaths, the Passover, the Feast of the Unleavened Bread, Pentecost, the Memorial of the Trumpets, the Day of Atonement and the Feast of the Tabernacles.