Augustine of Hippo
Catena Aurea · Johannesevangelium 1
The next day John seeth Jesus coming to him, and saith, Behold the Lamb of God, which taketh away the sin of the world. This is he of whom I said, After me cometh a man which is preferred before me: for he was before me. And I knew him not: but that he should be made manifest to Israel, therefore am I come baptizing with water.
(Tr. iv. c. 10, 11) For He Who took not sin from our nature, He it is Who taketh away our sin. Some say, We take away the sins of men, because we are holy; for if he, who baptizes, is not holy, how can he take away the other’s sin, seeing he himself is full of sin? Against these reasoners let us point to the text; Behold Him Who taketh away the sin of the world; in order to do away with such presumption in man towards man.