Q.103: Who are the proper subjects of this ordinance?
A. They who have been baptized upon a personal profession of their faith in Jesus Christ, and repentance from dead works.
Then those who gladly received his word were baptized; and that day about three thousand souls were added to them. And they continued steadfastly in the apostles’ doctrine and fellowship, in the breaking of bread, and in prayers. Acts 2:41-42