Augustine of Hippo
Catena Aurea · Johannesevangelium 10
I am the good shepherd, and know my sheep, and am known of mine. As the Father knoweth me, even so know I the Father: and I lay down my life for the sheep. And other sheep I have, which are not of this fold: them also I must bring, and they shall hear my voice; and there shall be one fold, and one shepherd. Therefore doth my Father love me, because I lay down my life, that I might take it again. No man taketh it from me, but I lay it down of myself. I have power to lay it down, and I have power to take it again. This commandment have I received of my Father. There was a division therefore again among the Jews for these sayings. And many of them said, He hath a devil, and is mad; why hear ye him? Others said, These are not the words of him that hath a devil. Can a devil open the eyes of the blind?
(Tr. xlvii. 4) What does He mean then when He says, I am not sent but unto the lost sheep of the house of Israel? Only, that whereas He manifested Himself personally to the Jews, He did not go Himself to the Gentiles, but sent others.