pretty constantly from nervous convulsions of this kind wrote the Second Epistle to the Corinthians after fourteen years of them, or the Epistles to the Romans, Philippians, Colossians, and Ephesians later still? There is, of course, no religious interest in affirming or denying any physical explanation of the matter whatever; but with our present data I do not think a certain explanation is within our reach. The Apostle himself is not interested in it as a physical affection. He speaks of it because of its spiritual significance, and because of the wonderful spiritual experiences he has had in connexion with it. It was given him, he says: but by whom? When we think of the purpose--to save him from spiritual pride--we instinctively answer, "God." And that, it can hardly be doubted, would have been the Apostle's own answer. Yet he does not hesitate to call it in the same breath a messenger of Satan. The name is dictated by the inborn, ineradicable shrinking of the soul from pain; that agonising, humiliating, annihilating thing, we feel at the bottom of our hearts, is not really of God, even when it does His work. In His perfect world pain shall be no more. It does not need science, but experience, to put these things together, and to understand at once the evil and the good of suffering. Paul, at first, like all men, found the evil overpowering. The pain, the weakness, the degradation of his malady, were intolerable. He could not understand that only a pressure so pitiless and humbling could preserve him from spiritual pride and a spiritual fall. We are all slow to learn anything like this. We think we can take warning, that a word will be enough, that at most the memory of a single pang will suffice to keep us safe. But pains remain with us, and the pressure is continuous and unrelieved, because the need of constraint and of discipline is ceaseless. The crooked branch will not bend in a new curve if it is only tied to it for half an hour. The sinful bias in our natures--to pride, to sensuality, to falsehood, or whatever else---will not be cured by one sharp lesson. The commonest experience in human life is that the man whom sickness and pain have humbled for the moment, the very moment their constraint is lifted, resumes his old habit. He does not think so, but it is really the thorn that has been keeping him right; and when its sharpness is blunted, the edge is taken from his conscience too.