As now by participation in the Son of God one is adopted as a son, and by participating in that wisdom which is in God is rendered wise, so also by participation in the Holy Spirit is a man rendered holy and spiritual. For it is one and the same thing to have a share in the Holy Spirit, which is (the Spirit) of the Father and the Son, since the nature of the Trinity is one and incorporeal. And what we have said regarding the participation of the soul is to be understood of angels and heavenly powers in a similar way as of souls, because every rational creature needs a participation in the Trinity.