Catholic Catechism - The Sacraments - Baptism Part 2

Christ's Baptism

1223 All the Old Covenant prefigurations find their fulfillment in Christ Jesus. He begins his public life after having himself baptized by St. John the Baptist in the Jordan.17 After his resurrection Christ gives this mission to his apostles: "Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you."18

1224 Our Lord voluntarily submitted himself to the baptism of St. John, intended for sinners, in order to "fulfill all righteousness."19 Jesus' gesture is a manifestation of his self-emptying.20 The Spirit who had hovered over the waters of the first creation descended then on the Christ as a prelude of the new creation, and the Father revealed Jesus as his "beloved Son."21

1225 In his Passover Christ opened to all men the fountain of Baptism. He had already spoken of his Passion, which he was about to suffer in Jerusalem, as a "Baptism" with which he had to be baptized.22 The blood and water that flowed from the pierced side of the crucified Jesus are types of Baptism and the Eucharist, the sacraments of new life.23 From then on, it is possible "to be born of water and the Spirit"24 in order to enter the Kingdom of God.

See where you are baptized, see where Baptism comes from, if not from the cross of Christ, from his death. There is the whole mystery: he died for you. In him you are redeemed, in him you are saved.25

Baptism in the Church

1226 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."26 The apostles and their collaborators offer Baptism to anyone who believed in Jesus: Jews, the God-fearing, pagans.27 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."28

1227 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.29
The baptized have "put on Christ."30 Through the Holy Spirit, Baptism is a bath that purifies, justifies, and sanctifies.31

1228 Hence Baptism is a bath of water in which the "imperishable seed" of the Word of God produces its life-giving effect.32 St. Augustine says of Baptism: "The word is brought to the material element, and it becomes a sacrament."33