3.5.5.2 The activity of the Holy Spirit in the sacraments

The salvific power inherent in the sacraments is based on the fact that all three divine persons are at work in these acts.

Thus the Holy Spirit is also an active power in Holy Baptism with water: God–Father, Son, and Holy Spirit–leads the baptised out of their state of remoteness from God (see 8.1).

The consecration of bread and wine for Holy Communion is only possible because the Holy Spirit is active in this act. Thus, by way of human words, the power of the Holy Spirit creates divine reality. Fully valid Holy Communion–the real presence of the body and blood of Christ–comes into being if it is supported by the power of the Holy Spirit and if the consecration of the elements of Holy Communion is performed on the basis of the authority issued by Apostles (see 8.2.12).

The imparting of the gift of the Holy Spirit through Apostles occurs in the sacrament of Holy Sealing, the baptism of the Spirit. Here God's power, God's life, and God's love are bestowed upon a human being. In the rebirth out of water and Spirit, the Holy Spirit causes God to take up His dwelling in a human being (Romans 8: 9).

See also