Within recent times the question as to the limitation of Christ's knowledge was hotly debated. That debate showed how much uncertainty on Christological questions exists and how strong monophysite opinion still is. In spite of Christ's own _dicta_, in spite of the dogma of two natures, denial of the limitation was widespread and persistent. To many devout minds it seems impious to speak of Christ's ignorance. This is a case in which the Chalcedonian definition is an invaluable guide. If one brings to an examination of Christ's nature the preconceived notion of His omniscience, the doctrine of the limitation of His knowledge seems an outrage on belief; but if one approaches the question with the orthodox formula in mind, one is prepared to find that His cognitive faculties were perfectly human and humanly perfect. So we find it. His knowledge and His faculties of knowledge on the lower plane of His experience were essentially the same as ours. He thought in our categories. He used our organon, perfect of its kind, but still a human organon. As man, inevitably, He had thoughts uncognised; and such a mental state we call "ignorance." His mind passed through stages of development as ours does. Education widened His horizon, strengthened His faculties, and increased His knowledge. Advance in knowledge implies a prior state of relative ignorance. The word "ignorance" as applied to Christ sounds very terrible; but investigation of its meaning robs it of its terrors. We use the word in two senses. On the one hand it may mean the absence of a thought, its absolute non-presence in consciousness. On the other it may mean thought unrelated to experience, one whose implications are not or cannot be fully deduced, in fact, the incomplete cognition of an idea. In neither case does it involve imperfection in the instrument or moral fault. On the contrary ignorance is a mark of the normal in cognition. If ignorance and limitation of knowledge were not found in Christ, we should be forced to agree with Apollinaris that the divine Logos had superseded His human intellect.