From the days of the early church, with a view to interpreting the title “Christ,” it was the tradition, unformulated doctrinally, to speak of Christ’s priestly office (munus sacerdotale) and his kingly office (munus regium). The question was left open whether we should speak instead of a triplex munus by adding the prophetic office (munus propheticum). J. Calvin took this view in Inst. 2.15, though not in all his writings. So did the Catechismus Romanus 1.3.7, Lutheran orthodoxy, and, even more so, Reformed orthodoxy. What was in view was a threefold office rather tha…