Saint Peter said that. Also, Jesus said at one time, "He who believes and is baptized shall be saved."
Just what role does baptism play in our spiritual walk?
I will be the first to say it, “Baptism is a strange custom.” It is one of those things that you or I would not have made up, except in a sense that it would be something like a hazing. We may have made this up to be like a rite of initiation into a certain group – like a bizarre ritual a college kid has to go through to be part of a fraternity or sorority.
To be truthful, this is how many people view baptism – this and nothing more. For instance, most churches make baptism a necessary action in order to become one of its members. It is understandable why the churches should do this and I agree that baptism should be a part of membership, but the unfortunate aspect of this requirement is that the meaning of baptism is then in danger of being degraded to mean only that. It is like a hazing to get into a club.
But baptism is not a hazing. It is instead a practice that was given to us by Jesus and has some specific purposes for us. More than we usually recognize, the practice of baptism was given to us as a means to strengthen our walk with the Lord. There are two principle ways in which it does this.