In the same way, it was not Christ who glorified himself in becoming high priest, but rather the one who said to him: You are my son: this day I have begotten you; just as he says in another place: You are a priest forever according to the order of Melchizedek. (Heb 5:1-6)
https://bible.usccb.org/bible/readings/102724.cfm
The Letter to the Hebrews uses priestly language to understand the role of Jesus who has entered the heavenly sanctuary. It does not use priestly language to refer to the ministers of the church. The Book of Revelation uses priestly language of the whole people of God: You made them a kingdom and priests for our God (Rev 5:10). The words employed in the scriptures for ministers of the church are secular: bishop (overseer), presbyter (elder), deacon (table waiter). Only much later and in a secondary sense, did the church use priestly language to refer to the ministers of the church. Today’s photo is from my ordination as a presbyter with Bishop Michael Begley and Deacon Steve Pendziszewski, May 6, 1978.
