This week’s topic was inspired by Pope Francis’ homily yesterday which called all peoples respond to the call of the Holy Spirit in their lives. He says The Holy Spirit “gives us consolation and the strength to move forward” but often we ignore His promptings. What tremendous help the Holy Spirit gives us to know, love and serve, to put our will second. However, (at least in my catechesis) the Holy Spirit was rarely discussed. So who is the third Person of the Trinity? Here’s what the Catechism says.
687 “No one comprehends the thoughts of God except the Spirit of God.”7 Now God’s Spirit, who reveals God, makes known to us Christ, his Word, his living Utterance, but the Spirit does not speak of himself. The Spirit who “has spoken through the prophets” makes us hear the Father’s Word, but we do not hear the Spirit himself. We know him only in the movement by which he reveals the Word to us and disposes us to welcome him in faith. The Spirit of truth who “unveils” Christ to us “will not speak on his own.”8 Such properly divine self-effacement explains why “the world cannot receive [him], because it neither sees him nor knows him,” while those who believe in Christ know the Spirit because he dwells with them.9
689 The One whom the Father has sent into our hearts, the Spirit of his Son, is truly God.10 Consubstantial with the Father and the Son, the Spirit is inseparable from them, in both the inner life of the Trinity and his gift of love for the world. In adoring the Holy Trinity, life-giving, consubstantial, and indivisible, the Church’s faith also professes the distinction of persons. When the Father sends his Word, he always sends his Breath. In their joint mission, the Son and the Holy Spirit are distinct but inseparable. To be sure, it is Christ who is seen, the visible image of the invisible God, but it is the Spirit who reveals him.
690 Jesus is Christ, “anointed,” because the Spirit is his anointing, and everything that occurs from the Incarnation on derives from this fullness.11 When Christ is finally glorified,12 he can in turn send the Spirit from his place with the Father to those who believe in him: he communicates to them his glory,13 that is, the Holy Spirit who glorifies him.14 From that time on, this joint mission will be manifested in the children adopted by the Father in the Body of his Son: the mission of the Spirit of adoption is to unite them to Christ and make them live in him
737 The mission of Christ and the Holy Spirit is brought to completion in the Church, which is the Body of Christ and the Temple of the Holy Spirit. This joint mission henceforth brings Christ’s faithful to share in his communion with the Father in the Holy Spirit. The Spirit prepares men and goes out to them with his grace, in order to draw them to Christ. The Spirit manifests the risen Lord to them, recalls his word to them and opens their minds to the understanding of his Death and Resurrection. He makes present the mystery of Christ, supremely in the Eucharist, in order to reconcile them, to bring them into communion with God, that they may “bear much fruit.”132
741 “The Spirit helps us in our weakness; for we do not know how to pray as we ought, but the Spirit himself intercedes with sighs too deep for words.”134 The Holy Spirit, the artisan of God’s works, is the master of prayer. (This will be the topic of Part Four.)