So presumptuous a title calls for some justification. Christology has never ceased to puzzle and to perplex the minds of Christians from earliest times. It would be outrageous to assert that because something in the realm of theology remains mysterious it must for that reason alone be being misunderstood. Nevertheless modern historical thought has posed the problem of the intelligibility of traditional Christology in a particularly acute way and this fact places an obligation upon Christians to ask once again whether it is unmistakably clear that their Christological beliefs do represent the faithful response to a mystery and are not the outcome of some mistake.