The idea of the Christian body as priestly, and of the life and worship of Christians as sacrificial is found also in the First Epistle of St. Peter. “Ye also,” St. Peter writes, “as living stones, are built up a spiritual house, to be a holy priesthood, to offer up spiritual sacrifices, acceptable to God through Jesus Christ.… Ye are an elect race, a royal priesthood, a holy nation, a people for God’s own possession.”
In the Second Epistle of St. Peter there is a strong expression of the union with God which is allowed to Christians. “That through these” (the promises of God), it is said, “ye may become partakers of the divine nature.”