Haven’t we done this before?
You know that I don’t have an official document which states “you don’t have to believe the infancy narratives are literal history as a matter of dogma.” and I know that you don’t have one which states the opposite. We are generally free to believe as we wish in such scriptural matters.
My interpretation is certainly not original with me as it is made by numerous Catholic scripture scholars, members of the Pontifical Biblical Commission, in books written under the *imprimatur, *and is taught in many Catholic Adult Education Classes. I am not aware of any Catholic adult scripture classes which teach the opposite.
One primary basis for my claim, of course, are the paragraphs in Dei Verbum which emphasize considerations of the literary form in analyzing scripture. In case you’ve forgotten:
To search out the intention of the sacred writers, attention should be given, among other things, to “literary forms.” For truth is set forth and expressed differently in texts which are variously historical, prophetic, poetic, or of other forms of discourse. The interpreter must investigate what meaning the sacred writer intended to express and actually expressed in particular circumstances by using contemporary literary forms in accordance with the situation of his own time and culture.
An analysis of the infancy narratives shows that they follow almost exactly the classical formula for this literary form and we know from classical studies that while such narratives had a definite purpose and taught truths, they were not meant to be history and were not interpreted literally.
I know you can find statements that contradict this (in very general terms) but since there is no independent proof of the events and descriptions being literal and there is a perfectly solid explanation for interpreting them as I have indicated, I don’t see a reason to believe other than I do.