Confirmation Seals Us With Gift of the Spirit
1. In the preceding catechesis we reflected on the sacrament of Confirmation as the fulfilment of baptismal grace. We will now examine the salvific value and spiritual effect expressed by the sign of anointing, which indicates the "seal of the gift of the Holy Spirit" (cf. Paul VI, Apostolic Constitution Divinae consortium naturae, 15 August 1971; L'Osservatore Romano English edition, 23 September 1971, p. 4).
Through this anointing, the confirmand fully receives that gift of the Holy Spirit which he had already received in Baptism in an initial and fundamental way. As the Catechism of the Catholic Church explains, "a seal is a symbol of a person (cf. Gn 38: 18; Song 8: 6), a sign of personal authority (cf. Gn 41: 42), or ownership of an object (cf. Dt 32: 34) ..." (CCC, n. 1295). Jesus himself says that "God the Father set his seal" on him (Jn 6: 27). And so we Christians, having been incorporated into the Body of Christ our Lord by faith and Baptism, are marked by the seal of the Spirit when we receive this anointing. The Apostle Paul explicitly teaches this in speaking to the Christians of Corinth: "It is God who establishes us with you in Christ, and has commissioned us; he has put his seal upon us and given us his Spirit in our hearts as a guarantee" (2 Cor 1: 21-22; cf. Eph 1: 13-14; 4: 30).
Confirmation imprints indelible mark on the soul
2. The seal of the Holy Spirit therefore signifies and brings about the disciple's total belonging to Jesus Christ, his being always at the latter's service in the Church, and at the same time it implies the promise of divine protection in the trials he will have to endure to witness to his faith in the world.
Jesus himself foretold this, shortly before his Passion: "They will deliver you up to councils; and you will be beaten in synagogues; and you will stand before governors and kings for my sake, to bear testimony before them.... And when they bring you to trial and deliver you up, do not be anxious beforehand what you are to say; but say whatever is given you in that hour, for it is not you who speak, but the Holy Spirit" (Mk 13: 9, 11ff.).
A similar promise recurs in Revelation, in a vision that embraces the Church's entire history and sheds light on the dramatic situation which the disciples of Christ are called to face in union with their crucified and risen Lord. They are presented in the evocative image of those whose foreheads have been marked with God's seal (cf. Rv 7: 2-4).
3. By bringing baptismal grace to fulfilment, Confirmation unites us more firmly to Jesus Christ and to his Body, the Church. This sacrament also increases the gifts of the Holy Spirit in us, to give us "a special strength of the Holy Spirit to spread and defend the faith by word and action as true witnesses of Christ, to confess the name of Christ boldly, and never to be ashamed of the Cross" (CCC, n. 1303; cf. Council of Florence, DS 1319; Second Vatican Council, Lumen gentium, nn. 11-12).
St Ambrose exhorts the confirmed in these vibrant words: "Recall that you have received the spiritual seal, "the Spirit of wisdom and understanding, the Spirit of counsel and fortitude, the Spirit of knowledge and piety, the Spirit of the fear of God. Guard what you have received. God the Father has marked you with his sign, Christ the Lord has confirmed you and has placed the Spirit in your hearts as a pledge" (De Mysteriis, 7, 42; PL 16, 402-403).
The gift of the Spirit obliges us to bear witness to Jesus Christ and to God the Father, and ensures that we have the ability and the courage to do so. The Acts of the Apostles tell us clearly that the Spirit was poured out upon the Apostles, so that they would become "witnesses" (Acts 1: 8; cf. Jn 15: 26-27).
St Thomas Aquinas wonderfully summarizes the Church's tradition, saying that through Confirmation all the necessary help is communicated to the baptized so that they can profess publicly and in every circumstance the faith received in Baptism. "The fullness of the Holy Spirit", he explains, "is given ad robur spirituale (for spiritual strength) which is appropriate to adulthood" (Summa Theologiae, III, 72, 2). This maturity is obviously not to be measured by human criteria, but from within the mysterious relationship of each individual to Christ.