Augustine of Hippo — as excerpted in the Catena Aurea on John 15:17-21

“(Tract. lxxxvii. 2) For why should the members exalt themselves above the head? Thou refusest to be in the body, if thou art not willing, with the head, to endure the hatred of the world. For love’s sake let us be patient: the world must hate us, whom it sees hate whatever it loves; If ye were of the world, the world would love his own.”