Hebrews 9:1-15 contrasts the limitations of the earthly Tabernacle and the old covenant with the superior work of Christ. It describes the Old Covenant's regulations as an imperfect system with animal sacrifices that could not perfect the worshippers' consciences. In contrast, Christ, as the high priest of the new covenant, entered a greater, heavenly sanctuary with his own blood to achieve eternal redemption and cleanse believers' consciences, allowing them to serve the living God.