We are in the royal priesthood by faith & baptism not by ordinationHe is the High Priest according to the order of Melchizedek.
For the priesthood being changed, of necessity there is also a change of the law. For He of whom these things are spoken belongs to another tribe, from which no man has officiated at the altar.
For it is evident that our Lord arose from Judah, of which tribe Moses spoke nothing concerning priesthood. And it is yet far more evident if, in the likeness of Melchizedek, there arises another priest who has come, not according to the law of a fleshly commandment, but according to the power of an endless life. Hebrews 7:12-16
This is the priesthood He has made us a part of.
To him who loves us and has freed us from our sins by his blood, and has made us to be a kingdom and priests to serve his God and Father —to him be glory and power for ever and ever!
Revelation 1:5-6
Christ is high priest of the order of melchisedec and the apostles ordained ministers of the same order