The tripartite construction of ancient Christian Churches (Narthex, Nave, Sanctuary) finds its Old-Testament parallel in the tripartite construction of the ancient Israelite Tabernacle and the Solomonic Temple with their courtyard, Holy Place, and Most Holy Place, or "Holy of Holies." The rites and rituals of the New Covenant are prefigured in the liturgical worship revealed to Moses in the illuminating darkness of Mount Sinai. In all these things Christ is revealed. The ancient tabernacle in the wilderness provides mystical illustrations of Christ and His Holy Virgin Mother. Important to any understanding of Christian Worship is the acknowledgement and recognition of Christ hidden in the pages of the Old Testament and in Old Covenant rites and rituals. What better place to start a study of worship than in God's revelation to Moses on Mount Sinai? Moses was to make everything according to the pattern shown him on the Mount. This pattern is the pattern of Heavenly Worship, also desribed in the book of the Revelation of Jesus Christ to the Holy Apostle and Theologian John on the Isle of Patmos. ( )