‘Who are we?’ as Christian believers, as Church, is a question that each generation of Christians, collectively and as individuals, is impelled to ask. Vatican II's teaching on the universal call to holiness marks a significant step in our journey toward addressing this question. This paper focuses on the call to holiness as deeply rooted in a sharing in the priestly ministry of Christ. The core of the paper is an exploration of the radical and unique nature of the priesthood of Christ. The paper continues by exploring the significance of the universal call to holiness as priesthood in the light of the unique nature of Christ's priesthood. The paper claims that the priesthood into which we are all baptised is at once Chrisological and ecclesiological, and suggests that, in the light of this theological reading, new answers may then arise in regard to the ever-urgent questions of Church order.