1 Timothy 5:23

If he be a striker, or violent, or cruel, and unmerciful, accuse him. These things are unworthy of a Bishop. If he be luxurious, this also is censurable. But if he takes care of his body that he may minister to thee, if he attends to his health that he may be useful, ought he for this to be accused? Knowest thou not that bodily infirmity no less than infirmity of soul injures both us and the Church? Why, otherwise, does Paul attend to this matter, in writing to Timothy, "Use a little wine for thy stomach's sake, and thy often infirmities"? For if we could practice virtue with the soul alone, we need not take care of the body. And why then were we born at all? But if this has contributed a great share, is it not the extreme of folly to neglect it?

"Drink no longer water, but use a little wine for thy stomach's sake and thy often infirmities." If one who had practiced fasting to such an extent, and used only water, so long that he had brought on "infirmities" and "frequent infirmities," is thus commanded to be chaste, and does not refuse the admonition, much less ought we to be offended when we receive an admonition from any one. But why did not Paul restore strength to his stomach? Not because he could not--for he whose garment had raised the dead was clearly able to do this too--but because he had a design of importance in withholding such aid. What then was his purpose? That even now, if we see great and virtuous men afflicted with infirmities, we may not be offended, for this was a profitable visitation. If indeed to Paul himself a "messenger of Satan" was sent that he should not be "exalted above measure" (2 Cor. xii. 11), much more might it be so with Timothy. For the miracles he wrought were enough to have rendered him arrogant. For this reason he is left to be subject to the rules of medicine, that he may be humbled, and others may not be offended, but may learn that they who performed such excellent actions were men of the same nature as themselves. In other respects also Timothy seems to have been subject to disease, which is implied by that expression, "Thy often infirmities," as well of other parts as of the stomach. He does not however allow him to indulge freely in wine, but as much as was for health and not for luxury.