Baptism is the sacrament of Christian initiation by which a person becomes a full and complete member of Christ’s body, the church. In baptism, God adopts us as his children as the sign of the cross is made on the forehead of the person being baptized and water is poured over the head of that person three times, in the name of the Father, the Son, and the Holy Spirit. Three sponsors or godparents are usually required of the person being baptized, who in the case of an infant, make promises or vows on his or her behalf. At Confirmation, those vows are then spoken or reaffirmed as an adult by the person who was baptized. Baptisms are usually administered in the context of the Eucharist on certain Sunday mornings that are scripturally appropriate for baptisms, so that the parish family into which the person is being baptized can be present to welcome and greet their new member. A short baptismal class, conducted by the Vicar and including an explanation of the Prayer Book service, is required of all who wish to be baptized (including godparents when possible), usually during the week before the baptism.