1 Corinthians 15:31

31.I die daily Such a contempt of death he declares to be in himself, that he may not seem to talk bravely when beyond the reach of danger. “I am every day,” says he, “incessantly beset with death. What madness were it in me to undergo so much misery, if there were no reward in reserve for me in heaven? Nay more, if my glory and bliss lie in this world, why do I not rather enjoy them, than of my own accord resign them?” He says that he dies daily, because he was constantly beset with dangers so formidable and so imminent, that death in a manner was impending over him. A similar expression occurs in Psalms 44:22, and we shall, also, find one of the same kind occurring in the second Epistle. (2 Corinthians 11:23.)

By our glory. The old translation reads propter, (because of,) (75) but it has manifestly arisen from the ignorance of transcribers; for in the Greek particle (76) there is no ambiguity. It is then an oath, by which he wished to arouse the Corinthians, to be more attentive in listening to him, when reasoning as to the matter in hand. (77) “Brethren, I am not some philosopher prattling in the shade. (78) As I expose myself every day to death, it is necessary that I should think in good earnest of the heavenly life. Believe, therefore, a man who is thoroughly experienced.”

It is also a form of oath that is not common, but is suited to the subject in hand. Corresponding to this was that celebrated oath of Demosthenes, which is quoted by Fabius, (79) when he swore by the Shades of those who had met death in the field of Marathon, while his object was to exhort them to defend the Republic. (80) So in like manner Paul here swears by the glory which Christians have in Christ. Now that glory is in heaven. He shows, then, that what they called in question was a matter of which he was so well assured, that he was prepared to make use of a sacred oath — a display of skill which must be carefully noticed.