Ghost, who is certainly not the begotten of the Father, must of necessity be a mere creature. But our holy faith maintains that besides the generation of the Word and the creation of the universe, there is in God a third productive operation by which the Holy Spirit proceeds from the single will of the Father and the Son. Not less productive than the divine intellect is the divine will. The Son, therefore, proceeds from the Father alone by generation; the Holy Ghost from both Father and Son by mutual love, and the universe of angels and men and things from Father, Son and Holy Ghost by the act of creation.
But, Brethren, since God is everywhere, how can the Holy Ghost be said to have been sent into the world or upon the Apostles? God is indeed everywhere, but it is possible for the divine persons to begin to exist under a new aspect where they did not previously so exist. For example, God the Son, as St. John says, " was in the world, but the world knew Him not," but in the plenitude of time the Father sent Him, made under the law, born of a woman, so that the Word was made flesh and dwelt amongst us in an altogether new and extraordinary manner. So, too, the Holy Spirit. When an infidel or heretic is converted, the Holy Ghost comes to him under the form of faith and hope and charity. When a sinner repents, the Spirit of God begins to dwell in him by grace and its accompanying virtues. That is why these virtues are by Isaias called spirits, " the spirit of wisdom and understanding, the spirit of counsel
