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

“(Tract. lxxxviii. 1) Our Lord, in exhorting His servants to bear patiently the hatred of the world, proposes to them an example than which there can be no better and higher one, viz. Himself: Remember the word that I said unto you, The servant is not greater than his lord. If they have persecuted Me, they will also persecute you: if they have kept My saying, they will keep yours also.”