Another interpretation of the words would make "knowing Christ after the flesh" refer to a knowledge at first hand of the facts and outward conditions of Christ's life in this world: a knowledge which Paul had in his early Christian days valued highly, but for which he no longer cared. There were numbers of men alive then who had known Christ in this sense. They had seen and heard Him in Galilee and Jerusalem; they had much to tell about Him which would no doubt be very interesting to believers; and more than likely some of them emphasised this distinction of theirs, and were disposed to be pretentious on the strength of it. Whether Paul had ever known Christ in this sense, it is impossible to say. But it is certain that to such knowledge he would have assigned no Christian importance whatever. And in doing so, he would have been following the example of Christ Himself. "Then shall ye begin to say, We have eaten and drunk in Thy presence, and Thou hast taught in our streets. And He shall say, I tell you, I know you not whence ye are." But it is impossible to suppose that this is a matter on which Paul as a Christian had ever needed to change his mind.
It is an interpretation in part akin to this which makes St. Paul here decry all knowledge of the historical Christ in comparison with the understanding of His death and resurrection. To know Christ after the flesh is in this case to know Him as He is represented in Matthew, Mark, and Luke; and Paul is supposed to say that, though narratives like these once had an interest and value for him, they really have it no longer: they are not essential to his Gospel, which is constituted by the death and resurrection alone. These great events and their consequences are all he is concerned with; to know Christ after the Evangelists is merely to know Him after the flesh; and flesh, even _His_ flesh, ought to have no significance since His death.
It is a little difficult to take this quite seriously, though it has a serious side. St. Paul, no doubt, makes very few references to incidents in the life of our Lord, or even to words which He spoke.[49] But he is not singular in this. The Epistles of Peter and John are historically as barren as his. They do not add a word to the Gospel story; there is no new incident, no new trait in the picture of Jesus, no new oracle. Indeed, the only genuine addition to the record is that one made by Paul himself--"the word of the Lord Jesus, how He said, It is more blessed to give than to receive." The truth seems to be that it is not natural for an apostle, nor for any inspired man, to fall back on quotations, like a preacher gravelled for lack of matter, or conscious of wanting authority. Paul and his colleagues in apostleship had Christ living in them, and recognised the spirit by which they spoke as the spirit of their Master. So far as this was the case, it was certainly a matter of indifference to them whether they were acquainted with this or that incident in His life, with this or that syllable that He spoke on such and such an occasion. One casual occurrence, one scene in Christ's sufferings, one discourse which He delivered, would inevitably be known with more exact and literal precision to one person than to another; and there is no difficulty in believing that the casual advantage which any individual might thus possess was regarded by St. Paul as a thing of no Christian consequence. Similar differences exist still, and in principle are to be disregarded. But it is another thing to say that all knowledge of the historical Christ is irrelevant to Christianity, and yet another to father such an opinion on St. Paul. The attempt to do so is due in part, I believe, to a misinterpretation of κατὰ σάρκα. Paul has been read as if what he disclaimed and decried were knowledge of Christ ἐν σαρκί. But the two things are quite distinct. Christ lived _in the flesh_; but the life that He lived in the flesh He lived _after the spirit_, and when its spiritual import is regarded, it is safe to say that no one ever knew Christ as He was _in the flesh_--the Christ of Matthew, Mark, and Luke--better than Paul. No one had been initiated into Christ's character, as that character is revealed in the story of the Evangelists, more fully than he. No one ever knew the mind, the temper, the new moral ideal of Christianity, better than Paul, and there is no ultimate source for this knowledge but the historical Christ. Paul could not in his work as an evangelist preach salvation through the death and resurrection of an unknown person; the story which was the common property of the Church, and with which her catechists everywhere indoctrinated the new disciples, must have been as familiar to him, in substance, as it is to us; and his evident knowledge and appreciation of the character embodied in it forbids us to think of this acquaintance with Christ as what he means by knowing Him after the flesh. He might have had the Gospel narratives by heart, and counted them inestimably precious, and yet have spoken exactly as he speaks here.