Holy Baptism is the basis of the whole Christian life, the gateway to life in the Spirit, and the door which gives access to the other sacraments. Through Baptism we are freed from sin and reborn as sons of God; we become members of Christ, are incorporated into the Church and made sharers in her mission: “Baptism is the sacrament of regeneration through water in the word.”
This sacrament is called Baptism, after the central rite by which it is carried out: to baptize (Greek baptizein) means to “plunge” or “immerse”; the “plunge” into the water symbolizes the catechumen’s burial into Christ’s death, from which he rises up by resurrection with him, as “a new creature.”
“This bath is called enlightenment, because those who receive this instruction are enlightened in their understanding . . . .” Having received in Baptism the Word, “the true light that enlightens every man,” the person baptized has been “enlightened,” he becomes a “son of light,” indeed, he becomes “light” himself: Baptism is God’s most beautiful and magnificent gift. . . .We call it gift, grace, anointing, enlightenment, garment of immortality, bath of rebirth, seal, and most precious gift. It is called gift because it is conferred on those who bring nothing of their own; grace since it is given even to the guilty; Baptism because sin is buried in the water; anointing for it is priestly and royal as are those who are anointed; enlightenment because it radiates light; clothing since it veils our shame; bath because it washes; and seal as it is our guard and the sign of God’s Lordship.
From the very day of Pentecost the Church has celebrated and administered holy Baptism. Indeed St. Peter declares to the crowd astounded by his preaching: “Repent, and be baptized every one of you in the name of Jesus Christ for the forgiveness of your sins; and you shall receive the gift of the Holy Spirit.” The apostles and their collaborators offer Baptism to anyone who believed in Jesus: Jews, the God-fearing, pagans. Always, Baptism is seen as connected with faith: “Believe in the Lord Jesus, and you will be saved, you and your household,” St. Paul declared to his jailer in Philippi. And the narrative continues, the jailer “was baptized at once, with all his family.” According to the Apostle Paul, the believer enters through Baptism into communion with Christ’s death, is buried with him, and rises with him: Do you not know that all of us who have been baptized into Christ Jesus were baptized into his death? We were buried therefore with him by baptism into death, so that as Christ was raised from the dead by the glory of the Father, we too might walk in newness of life. The baptized have “put on Christ.” Through the Holy Spirit, Baptism is a bath that purifies, justifies, and sanctifies.