Ambrose of Milan
Catena Aurea · Lukasevangelium 1
For he shall be great in the sight of the Lord, and shall drink neither wine nor strong drink; and he shall be filled with the Holy Ghost, even from his mother’s womb. And many of the children of Israel shall he turn to the Lord their God. And he shall go before him in the spirit and power of Elias, to turn the hearts of the fathers to the children, and the disobedient to the wisdom of the just; to make ready a people prepared for the Lord.
On whomsoever the Holy Spirit is poured, in him there is fulness of great virtue; as in St. John, who before he was born, when yet in his mother’s womb, bore witness to the grace of the Spirit which he had received, when leaping in the womb of his parent he hailed the glad tidings of the coming of the Lord. There is one spirit of this life, another of grace. The former has its beginning at birth, its end at death; the latter is not tied down to times and seasons, is not quenched by death, is not shut out of the womb.