The Spirit is of the Father and of the Son, proceeding from both, truly and fully God. He is a person, called the Helper and the Spirit of truth. He is the author of Scripture, our guide, our guarantee, and our intercessor in prayer. He convicts the world regarding sin and righteousness and judgment. He is a teacher and a witness to us of the things of God. He regenerates and renews us, dwelling in those who are in Christ.