Jesus’s sacrifice of himself on the cross fulfills the three main functions of sacrifice in the Old Testament: praise, atonement, and covenantal ratification. First, Jesus was able to fulfill God’s law as the one true and obedient representative human. He accomplished this purely as an act of praise to the Father and not out of compulsion or obligation.
Christ possessed the fullness of divine glory and was therefore completely free from the law. Consequently, he was uniquely capable of fulfilling the law as a sacrifice of praise. Jesus is the perfect person of faith (Heb. 12:2-3) who trusted that he shared all things with the Father (Phil. 2:6-7). Therefore, he could perform obedient service not because he had to redeem himself or curry favor with God, but only to glorify the Father: “I glorified you on earth, having accomplished the work that you gave me to do” (Jn. 17:4).
Christ’s Death as Atoning Sacrifice
Secondly, Jesus’s death was an atoning sacrifice for sins. Under the old covenant, sin entailed death. As St. Paul wrote: “the wages of sin is death” (Rom. 6:32). Sin necessarily calls for retribution proportionate to the crime in the form of lex talionis. For example, under the Noahic covenant in Genesis 9, taking life must result in the murderer forfeiting his life (Gen. 9:6). Likewise, under Levitical law, the same principle holds true: “you shall pay life for life, eye for eye, tooth for tooth, hand for hand, foot for foot, burn for burn, wound for wound, stripe for stripe” (Exod. 21:23-25).
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