Institutes of the Christian Religion
John Calvin viewed the understanding of Christ's mission as an essential element of knowing him: knowing Christ involves an understanding of why he was sent. In Calvin's view humans are not capable of understanding God in his own right, and can only begin to know God through Christ. In Institutes of the Christian Religion (II.xv) Calvin was critical of those who know Christ "in name only", e.g. those who simply teach that Christ is the Redeemer without understanding or teaching how he redeems. For Calvin knowing Christ involves knowing his power and dignity in terms of the threefold office: as priest, prophet and king.