Q. 94. What is Baptism?
A. Baptism is a sacrament, wherein the washing with water, in the name of the Father, and of the Son, and of the Holy Ghost, does signify and seal our ingrafting into Christ, and partaking of the benefits of the covenant of grace and our engagement to be the Lord’s.
“As many of you as were baptized into Christ have clothed yourselves with Christ.” (Gal. 3:27)
Whenever the church baptizes anyone, it is a radical and controversial thing we do. There is an ancient tradition that goes, "When you save the life of a person, when you rescue them from drowning or death, you are bound to them forever." That is what we do in baptism: we have saved this person's life; we have claimed the person for Christ. Now, we have a relationship with that person that can be neglected or abused, but never broken. In moments of despair and doubt and desolation, Martin Luther would say to himself as a reminder, "I was baptized."
Baptism is neither a ticket to heaven nor a magic charm to keep us out of harm’s way. Rather, we called to work at sustaining our identity as the baptized becoming the sons and daughters of God. The Westminster Larger Catechism speaks of “the needful but much neglected duty of improving our Baptism… all our lifelong” (7.277). As John Calvin put it, “baptism is the sign of the initiation by which we are received into the society of the church, in order that, engrafted in Christ, we may be reckoned among God’s children.” The power of baptism is lifelong.
Baptism, as a sacrament, is an outward visible “sign” that attests to God’s gracious goodwill toward us. Calvin indicates that sacraments are “testimonies of grace and salvation from the Lord.” The principalities and powers have suffered ultimate defeat through the cross and resurrection of Jesus Christ, but they are still at work in the world. Baptism plunges believers into a situation where the old has passed away “So if anyone is in Christ, there is a new creation: everything old has passed away; see, everything has become new!” (2 Cor. 5:17), although the old can still afflict, perplex, persecute, or strike down (2 Cor. 4:7-18). The present reality of alienation, brokenness, and injustice demonstrates the gap and tension between our world and the fullness of the reign of God.
Baptism links believers with the death as well as the resurrection of Jesus Christ, disciples of Jesus Christ and the faith communities where they participate share in his suffering and self-giving ministry (cf. Phil. 3:10). They are called to live into their baptism, to learn daily how to die and thus how to live. As such, baptism goes far beyond the private salvation of the individual soul or the isolated moment of baptism. It forms a new humanity by incorporating believers into the body of Jesus Christ and beginning their formation as a missionary people. We are not simply a single, lone individual claimed by God in baptism we are the body of Christ who are the baptized together as a covenant people working together as a missional people.