If God commanded Moses to ordain a high priest, then why is it we aren’t doing that today? After all, the book of Leviticus recounts a 7-day ceremony meant to inaugurate the priesthood, and the high priesthood in particular, for the Israelites. If the Bible commands it, then why aren’t we doing it?
Although the Old Testament books were written for us, they were not written to us. They were written to ancient Israel, to a people who were saved from Egyptian slavery, and who agreed to a covenant with God, mediated through Moses. Since we are not living under the same covenant with God, then we cannot blindly apply Old Testament commands to our lives today. We must look to the new covenant described in the New Testament for guidance.
When we look at the New Testament book of Hebrews, our questions are answered about the High Priest. The author of Hebrews makes it clear that Jesus Christ is our High Priest. As High Priest, he made a “sacrifice of atonement for the sins of the people,” he was faithful to his calling from God the Father, he resides in Heaven with the Father, he is able to “sympathize with our weaknesses,” and he is High Priest forever. The author of Hebrews summarizes:
For it was fitting that we should have such a high priest, holy, blameless, undefiled, separated from sinners, and exalted above the heavens. Unlike the other high priests, he has no need to offer sacrifices day after day, first for his own sins, and then for those of the people; this he did once for all when he offered himself. (Heb 7:26-27)