What does the Bible say about the priesthood?

The priesthood is outlined in the book of Exodus, particularly in chapters 27 and 28, where God gives specific instructions for the establishment of Aaron and his sons as priests. They are tasked with serving God through designated sacrificial offerings at the tabernacle, which represents the way God chooses to be worshiped. This priesthood serves as a crucial role in mediating between God and the Israelites, emphasizing that only through proper representation and sacrificial acts can they approach the holy God. Ultimately, these Old Testament priestly functions foreshadow the perfect priesthood of Christ, who fulfills all that the Levitical priests typified.