Why do Catholics baptize babies?

Catholics baptize babies because Baptism is God’s gift before it is our achievement. Through it, a child is freed from original sin, reborn in Christ, and incorporated into His Church (CCC 1213, 1250).

Why infants need Baptism. Every human being, except the Blessed Virgin Mary by a unique grace, is conceived with original sin. Original sin is a fallen condition inherited from Adam, rather than a personal sinful act committed by the baby (Rom 5:12-19; CCC 403-405). Baptism forgives all sin, gives sanctifying grace, and makes the baptized person an adopted child of God (CCC 1263-1265). Babies can receive these gifts even though they cannot understand or earn them.

What Scripture shows. Jesus said that no one can enter the kingdom of God without being born of water and Spirit (Jn 3:5). He also welcomed children and declared, “Let the children come to me; do not prevent them” (Mk 10:14). In Acts, entire households were baptized, including the households of Lydia and the Philippian jailer (Acts 16:15, 33). Scripture does not describe Baptism as a reward reserved for adults who can explain their faith. It presents Baptism as God’s act of cleansing, rebirth, and entrance into His covenant people (Acts 2:38-39; Tit 3:5).

Whose faith is involved. An infant is baptized in the faith of the Church, professed by the parents and godparents (CCC 1253). This resembles how an infant entered the Old Covenant through circumcision before making a personal decision. St. Paul connects Baptism with circumcision and with sharing in Christ’s death and resurrection (Col 2:11-12). As the child grows, the family and parish must teach the faith so that the child can personally embrace the grace already received. Infant Baptism therefore carries serious responsibilities for parents and godparents (CCC 1254-1255).

What the early Church practiced. Infant Baptism is an ancient and continuous Christian practice. The Catechism calls it an “immemorial tradition” and notes explicit testimony to it from the second century (CCC 1252). The Church has consistently understood Baptism as necessary in the ordinary plan of salvation because Christ commanded it and joined it to new birth (Mt 28:19; CCC 1257).

What parents should do. Catholic parents should arrange Baptism within the first weeks after birth and prepare to raise the child in the faith. If an unbaptized person is in danger of death, anyone may baptize by pouring water while saying, “I baptize you in the name of the Father, and of the Son, and of the Holy Spirit,” provided the person intends to do what the Church does (CCC 1256).