The idea of sacrifice is at the core of the Christian faith. The sacrifice of Jesus Christ is one of the central truths of the gospel. However, this important element of the Christians faith finds its origin and explanation in the sacrificial system of the Old Testament. It is true that Jesus’ sacrifice has made obsolete the Old Testament sacrificial system (Hebrews 10:1-18). However, the original readers of the letter to the Hebrews knew and understood the sacrificial system of the Old Testament. From that knowledge, they were able to more fully understand Jesus’ work on the cross.