The true state of the case is well expressed by
Bingham Ant. X. v. §
4., “Though the ancients acquainted the
Catechumens with the doctrine of Baptism so far as to make them
understand the spiritual nature and design of it, yet they never
admitted them to the sight of the actual ceremony, nor so much as to
hear any plain discourse about the manner of its administration, till
they were fitted and prepared for the actual reception of
it,”—or rather, till they actually received it.