St. Pacian of Barcelona ca. 310-391
Thus Christ begetteth in the Church by His Priests, as says the same Apostle, For in Christ Jesus have I begotten you. And so the seed of Christ, that is, the Spirit of God produces, by the hands of the Priests, the new man conceived in the womb of our Mother, and received at the birth of the font, faith presiding over the marriage rite. For neither will he seem to be engrafted into the Church, who hath not believed, nor he to be born again of Christ, who hath not himself received the Spirit. We must believe therefore that we can be born. For so saith Philip, If thou believest…thou mayest. Christ therefore must be received that He may beget, for thus saith the Apostle John, As many as received Him, to them gave He power to become the sons of God. But these things cannot otherwise be fulfilled except by the Sacrament of the Laver, and of the Chrism, and of the Bishop. For by the Laver sins are washed away, by Chrism the Holy Spirit is poured out, but both these we obtain at the hand and the mouth of the Bishop. (Discourse on Baptism 7)