Jim Cassidy and Camden Bucey speak about the relationship between the Old Covenant and New Covenant in the epistle to the Hebrews. Moses was a servant in God's house, but Jesus Christ is a faithful son. Christ is the mediator of a better covenant. But we should not conclude that these covenants are unrelated. Indeed, Moses was a servant in God's house, not a different house. The substance of the Old Covenant is Christ, and it was nothing less than his grace that was mediated to Old Covenant believers, though it was administered through promises, types, and sacrifices. We discuss the earthly things of Old Covenant worship and how they are shadows and copies of the heavenly reality to which Christ has brought his people.