In my earlier post, I teased out the liturgical connection between saving faith and baptism. This was followed with a Patristic source bearing some witness to the exegetical and historical moves I made there. As I come across them, I'll add them on the blog (reading is, alas, something I don't get to do often: such is the "Valley of the Diapers").
This next quote comes from St Cyril of Jerusalem's Catechetical Lectures. Key to what I'm attempting to argue is the role of the title 'Believer':
"Thou [the Catechumen readying for baptism after Lent] receivest a new name name, which before thou hadst not: before thous wast a Catchumen, now thou wilt be a Believer."
Why, if faith was rational assent to a series of propositions, would they go from "catechumen" (a learner) to a "believer"?