I always learn something new in your write-ups Leolaia. I don't remember Spong's books ever relating the legends of Miriam's dream or the husbands divorcing their wives. Very interesting.
Pole
If I'm not mistaken, pesher, or taking OT passages and applying them to the author's or reader's point in time was a practice of some ancient jews, in particular the Essenes [another curious link to the early christians perhaps?] Hopefully I'm not mixing this up too much with some of Barbara Theiring's ideas on pesher [which aren't taken seriously at all by those in the field - read some of her books and you'll see why :) ]. But Matthew's use of motifs surrounding Moses is sort of in the same vain. Maybe that's the original intent of the author of the Gospel, not as 100% actual history, but simply portraying was was mostly true to the author (Jesus was the Liberator), and doing it according to that particular view of the divine's repeated and similar intervention in history? The Jewish readers would easily pick up on the themes and that sort of approach.