(Theologically Corrected/Edited for Catholics)
Thus it is said: "Ye are a chosen generation, a royal priesthood, a holy nation." (I Pet. ii. 9) Thus all who are Christians are priests; those whom we call priests are ministers chosen from among us . . . .
Comment: I have taken this kernel of truth out of a larger quote that theologically contradicts the Catholic belief in an ordained, sacramental, ministerial priesthood in apostolic succession.
But what remains after my heavy editing is soundly Catholic: all who are baptized are priests, whether men, women, or children, all of whom are members of the common or baptismal priesthood. For Catholics, the ministerial priesthood is then set apart in a special sacrament of holy orders in apostolic succession to serve the rest of us.
We too often forget the baptismal or common priesthood; it's worth recalling often. It's worth recalling that the common priesthood of all the baptized is a perfectly Catholic doctrine. The laity need to recall their baptismal dignity as priests, and ordained priests also need to recall the priestly dignity of all the baptized whom they serve.