A Change in the Priesthood

The Messiah would be a Priest (and King)

We are told the Christ would be a King. God calls His Son God and then sets Him above his companions by anointing Him with oil, making Him King. Psa 45:6,7

In addition to being a King, the Messiah would also be a priest, but not in the order of Aaron.

The LORD has sworn
    and will not change his mind:
“You are a priest forever,
    in the order of Melchizedek.” Psalm 110:4

The Hebrew writer asks:

If perfection could have been attained through the Levitical priesthood… why was there still need for another priest to come, one in the order of Melchizedek, not in the order of Aaron? 12 For when the priesthood is changed, the law must be changed also. Hebrews 7:11-12

A change in the priesthood drives (requires) a change in the law.

The Former Law Was Weak, Useless

What’s the purpose of the priest? To make atonement for transgressions of the law. It’s the solution, the remedy, to our transgressions (ie sins) of the law. Hebrews 2:17,18

The former law had flawed priests who were unable to make the worshipper perfect because the law made nothing perfect. However, the perfected Messiah, as our great high priest, was made our remedy with an oath (from God). Because of this oath He can guarantee a better hope and since He lives forever, he has a permanent priesthood. Heb 7:18-24,28

Therefore he is able to save completely those who come to God through him, because he always lives to intercede for them.  26 Such a high priest truly meets our need—one who is holy, blameless, pure, set apart from sinners, exalted above the heavens.  Hebrews 7:25,26

A new priest, a new law, a good thing!

In God’s love, Scott