The Catechism in Questions & Answers

118. What does it mean when we refer to “Jesus Christ—the Priest”?

The most important task of the priests in the time of the Old Testament was to bring sacrifices to God in order to thereby find grace before God. Jesus Christ is a Priest who stands above all others as He is the true High Priest. He sacrificed His sinless life so that human beings could be saved from spiritual death and attain eternal life.
In Old Testament times, high priests had the function of bringing the sins of the people to God. For this purpose they would enter the holiest space of the temple (the “Most Holy Place”) once each year—namely on the Day of Atonement—and intercede for the people. Unlike the high priests of the old covenant, Jesus Christ had no need to be reconciled with God. Rather He Himself is the Reconciler who forgives sins.

Jesus’ sacrificial death: see Questions 98. et seq., 177. et seq.

Significant priests in the Old Testament:

  • Melchizedek
  • Aaron
  • Eli
  • Zadok