You also, as living stones, are built up as a spiritual house, to be a holy priesthood, to offer up spiritual sacrifices, acceptable to God through Jesus Christ.
A holy priesthood It is a singular honor, that God should not only consecrate us as a temple to himself, in which he dwells and is worshipped, but that he should also make us priests. But Peter mentions this double honor, in order to stimulate us more effectually to serve and worship God. Of the spiritual sacrifices, the first is the offering of ourselves, of which Paul speaks in Romans 12:1; for we can offer nothing, until we offer to him ourselves as a sacrifice; which is done by denying ourselves. Then, afterwards follow prayers, thanksgiving, almsdeeds, and all the duties of religion. 