"Our justification from sins takes place at the point of saving faith, not at the point of water baptism, which usually occurs later. But if a person is already justified and has sins forgiven eternally at the point of saving faith, then baptism is not necessary for forgiveness of sins nor for the bestowal of new spiritual life. Baptism, then, is not necessary for salvation. But it is necessary if we are to be obedient to Christ, for he commanded baptism for all who believe in him."

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The earthly form of Christ is the form that died on the cross. The image of God is the image of Christ crucified. It is to this image that the life of the disciples must be conformed; in other words, they must be conformed to his death (Phil 3.10, Rom 6.4) The Christian life is a life of crucifixion (Gal 2.19) In baptism the form of Christ's death is impressed upon his own. They are dead to the flesh and to sin, they are dead to the world, and the world is dead to them (Gal 6.14). Anybody living in the strength of Christ's baptism lives in the strength of Christ's death.

— Dietrich Bonhoeffer