Augustine of Hippo
Catena Aurea · Johannesevangelium 16
But now I go my way to him that sent me; and none of you asketh me, Whither goest thou? But because I have said these tilings unto you, sorrow hath filled your heart. Nevertheless I tell you the truth; It is expedient for you that I go away: for if I go not away, the Comforter will not come unto you; but if I depart, I will send him unto you. And when he is come, he will reprove the world of sin, and of righteousness, and of judgment: Of sin, because they believe not on me; Of righteousness, because I go to my Father, and ye see me no more; Of judgment, because the prince of this world is judged.
(Tr. xcv. 1) But how is it that Christ did not reprove the world? Is it because Christ spoke among the Jews only, whereas the Holy Spirit, poured into His disciples throughout the whole world, reproved not one nation only, but the world? But who would dare to say that the Holy Ghost reproved the world by Christ’s disciples, and that Christ did not, when the Apostle exclaims, Do ye seek a proof of Christ speaking in Me? (2 Cor. 13:3. Vulg.) Those then whom the Holy Ghost reproves, Christ reproves also. He shall reprove the world, means, He shall pour love into your hearts, insomuch, that fear being cast out, ye shall be free to reprove. He then explains what He has said: Of sin, because they believed not in Me. He mentions this as the sin above all others, because while it remains, the others are retained, when it departs, the others are remitted.