Miscellanies 5.10.61

So the mysteries hidden until the apostles and handed down by them as they received them from the Lord (hidden, that is, in the old covenant), which “have now been made manifest to the saints,” are one thing; and another is “the riches of the glory of the mystery among the Gentiles,” which is faith and hope in Christ, whom elsewhere he has called the “foundation.” And again, as if eager to display knowledge, he writes thus: “admonishing every person in all wisdom, that we may present every person perfect in Christ.” Not every person without qualification, since then no one would be an unbeliever; nor does he say that everyone who believes is perfect in Christ; but he says “every person” as if to say the whole person, purified, as it were, in body and soul. For he adds expressly, because knowledge does not belong to all: “knit together in love and into all the riches of the full assurance of understanding, to the knowledge of the mystery of God in Christ, in whom are hidden all the treasures of wisdom and knowledge.” “Continue steadfastly in prayer, watching in it with thanksgiving.” And thanksgiving is made not only for the soul and spiritual goods, but also for the body and the goods of the body.