
Gregory the Great
Catena Aurea · Johannesevangelium 20
Then the same day at evening, being the first day of the week, when the doors were shut where the disciples were assembled for fear of the Jews, came Jesus and stood in the midst, and saith unto them, Peace be unto you. And when he had so said, he shewed unto them his hands and his side. Then were the disciples glad, when they saw the Lord. Then said Jesus to them again, Peace be unto you: as my Father hath sent me, even so send I you. And when he had said this, he breathed on them, and saith unto them, Receive ye the Holy Ghost: Whose soever sins ye remit, they are remitted unto them; and whose soever sins ye retain, they are retained. But Thomas, one of the twelve, called Didymus, was not with them when Jesus came. The other disciples therefore said unto him, We have seen the Lord. But he said unto them, Except I shall see in his hands the print of the nails, and put my finger into the print of the nails, and thrust my hand into his side, I will not believe.
(Hom. xxvi.) But why is He first given to the disciples on earth, and afterwards sent from heaven? Because there are two commandments of love, to love God, and to love our neighbour. The spirit to love our neighbour is given on earth, the spirit to love God is given from heaven. As then love is one, and there are two commandments; so the Spirit is one, and there are two gifts of the Spirit. And the first is given by our Lord while yet upon earth, the second from heaven, because by the love of our neighbour we learn how to arrive at the love of God.