That is the priesthood of believers, not a church role .
From Matthew Henry
Those who received him were highly privileged, v. 9. The Jews were exceedingly tender of their ancient privileges, of being the only people of God, taken into a special covenant with him, and separated from the rest of the world. "Now,’’ say they, "if we submit to the gospel—constitution, we shall lose all this, and stand upon the same level with the Gentiles.’’ (1.) To this objection the apostle answers, that if they did not submit they were ruined (v. 7, 8), but that if they did submit they should lose no real advantage, but continue still what they desired to be, a chosen generation, a royal priesthood, etc. Learn, [1.] All true Christians are a chosen generation; they all make one family, a sort and species of people distinct from the common world, of another spirit, principle, and practice, which they could never be if they were not chosen in Christ to be such, and sanctified by his Spirit. [2.] All the true servants of Christ are a royal priesthood. They are royal in their relation to God and Christ, in their power with God, and over themselves and all their spiritual enemies; they are princely in the improvements and the excellency of their own spirits, and in their hopes and expectations; they are a royal priesthood, separated from sin and sinners, consecrated to God, and offering to God spiritual services and oblations, acceptable to God through Jesus Christ. [3.] All Christians, wheresoever they be, compose one holy nation. They are one nation, collected under one head, agreeing in the same manners and customs, and governed by the same laws; and they are a holy nation, because consecrated and devoted to God, renewed and sanctified by his Holy Spirit. [4.] It is the honour of the servants of Christ that they are God’s peculiar people. They are the people of his acquisition, choice, care, and delight. These four dignities of all genuine Christians are not natural to them; for their first state is a state of horrid darkness, but they are effectually called out of darkness into a state of marvellous light, joy, pleasure, and prosperity, with this intent and view, that they should show forth, by words and actions, the virtues and praises of him who hath called them.
“That is the priesthood of believers, not a church role .”
That seems to be a distinction without a difference. The church is an organism comprised of the priesthood of believers who bring the sacrifice of praise to God continually. Different offices and gifts for the equipping of all saints but all are priests before God.