The Holy Spirit is the Holy Trinity’s third member, and the most active and least known member in the world. He created the world (Genesis 1:2), led Jesus into the desert (Matthew 4:1), comes to us at Confirmation (Atos 8:18), guides the Catholic, and intercedes for us in sighs we cannot understand (Romans 8:26).
“But you shall receive power when the Holy Spirit has come upon you; and you shall be my witnesses in Jerusalem and in all Judea and Samaria and to the end of the earth.” (Acts 1:8)
“Nevertheless I tell you the truth: it is to your advantage that I go away, for if I do not go away, the Counselor will not come to you; but if I go, I will send him to you. And when he comes, he will convince the world of sin and of righteousness and of judgment; of sin, because they do not believe in me; of righteousness, because I go to the Father, and you will see me no more; of judgment, because the ruler of this world is judged. I have yet many things to say to you, but you cannot bear them now. When the Spirit of truth comes, he will guide you into all the truth; for he will not speak on his own authority, but whatever he hears he will speak, and he will declare to you the things that are to come. He will glorify me, for he will take what is mine and declare it to you. All that the Father has is mine; therefore I said that he will take what is mine and declare it to you.” (John 16:7-15)
The Holy Spirit is called Spirit of Christ (Romans 8:9), Spirit of the Son (Galatians 4:6), and Spirit of Jesus (Acts 16:7). Other titles include Comforter, Paraclete, Spirit of God, Spirit of Truth, Spirit of Promise and Spirit of Adoption.
The Catholic Church affirms the dogmas of the Holy Spirit:
•He is the Third Person of the Blessed Trinity.
•Though really a distinct Person from the Father and the Son, the Holy Spirit is consubstantial with the Father and the Son. The three divinities possess the same Nature.
•The Holy Spirit proceeds, not by way of generation, but by way of inspiration, from the Father and the Son.
The Holy Spirit operates in many ways:
•It prepares men through grace to draw them to Christ.
•It manifests the Risen Lord to men by spreading his word and helping them to understand the faith mysteries.
•It makes Christ present, especially in the Eucharist.
•It brings men into God’s closeness.