Salmos 51

Salmos 51:10-12

We shall now examine what kinds of ideas about the Spirit we hold in common, as well as those that we have gathered from the Scriptures or received from the unwritten tradition of the Fathers. First of all, who can listen to the Spirit's titles and not be lifted up in his soul? Whose thoughts would not be raised to contemplate the supreme nature? He is called the Spirit of God, the Spirit of truth who proceeds from the Father, right Spirit, willing Spirit. His first and most proper title is Holy Spirit, a name most especially appropriate to everything that is incorporeal, purely immaterial and indivisible. — ON THE HOLY SPIRIT 9:22