Bede the Venerable
Catena Aurea · Johannesevangelium 3
John answered and said, A man can receive nothing, except it be given him from heaven. Ye yourselves bear me witness, that I said, I am not the Christ, but that I am sent before him. He that hath the bride is the bridegroom; but the friend of the bridegroom, which standeth and heareth him, rejoiceth greatly because of the bridegroom’s voice: this my joy therefore is fulfilled. He must increase, but I must decrease.
Who art thou then, since thou art not the Christ, and who is He to Whom thou bearest witness? John replies, He is the Bridegroom; I am the friend of the Bridegroom, sent to prepare the Bride for His approach: He that hath the Bride, is the Bridegroom. By the Bride he means the Church, gathered from amongst all nations; a Virgin in purity of heart, in perfection of love, in the bond of peace, in chastity of mind and body; in the unity of the Catholic faith; for in vain is she a virgin in body, who continueth not a virgin in mind. This Bride hath Christ joined unto Himself in marriage, and redeemed with the price of His own Blood.