: sinless or impeccable priest; i.e., Christ in his priestly work of self-sacrifice, which required that he be a sinless offering given for the sins of the world. See anamartēsia; sacerdotium. : priestly work or priestly office; either the priestly office in the nation of Israel under the old covenant or the priestly work of Christ as the fulfillment of the Old Testament office and his complete priestly and sacrificial offering for the sins of humanity. When applied