Jesus ‘’is the mediator of a better covenant, which has been enacted through better promises ‘’( Heb. 8.6 ) This covenant corrects the faults of the first covenant ( through Moses ) ( Heb. 8.7 ); The new covenant “ has made the first one obsolete, “ so that it is now passing away (Heb. 8.13) As a result of the old covenant becoming obsolete, all its institutions likewise become obsolete ---- priesthood, sacrifice, and sanctuary. Hebrews 10. 1-10 specifies that the imperfection of the old covenant had to do with its sacrificial system. The Law was only the shadow, not the substance ( Heb. 10.1 ). It was unable to make the worshippers perfect ( Heb 10.2 ), for its sacrifices had to be repeated ( Heb 10. 2-3 ). And were inferior, bringing no final remission of sins ( Heb. 10.4 ) Hence, Christ ‘’ abolishes the first ( the cultic system of atonement ) in order to establish the second ( the principle of obedience to God’s will ) ‘’ ( Heb. 10.9 ) The replacement of the institutions of old Israel through Christ’s once- for- all action did not, however, remove for the writer of Hebrews the authority of the message of the Old Testament, for he bases his whole argument on it. For the Christian, the Old Testament remains the ‘’ word of God ‘’ but the basis of the relationship with God now is different ---- what God has done in Jesus and the new covenant of forgiveness in him. The Old Testament as a system of religion does not regulate the activities of the church, that is ,the people of Christ. The church of Christ is a new covenant community.