Q.101: What is the duty of such who are rightly baptized?
A. It is the duty of such who are rightly baptized to give up themselves to some particular and orderly church of Jesus Christ, that they may walk in all the commandments and ordinances of the Lord blameless.
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