It is easy to romanticize Mary, or the shepherds, to make them into heroic noble figures, people of holiness and strength whom anyone would choose for greatness. But I think these girls probably hit closer to the mark--willing, but ambivalent, resigned, but unsure. The good news is, that the same God who gave Mary the courage to face scandal, to leave home, to give birth, to flee to Egypt . . can also strengthen these two girls.
I just finished a book on the life of Wilma and Arthur Matthews, missionaries in China in the early 1950's, who narrowly escaped with their lives and their young daughter (Green Leaf in Drought-time, thanks to Barb Ryan). At the very end, Arthur writes in a letter these words, which express the same thought :
The Lord preserveth the simple. God does not look for a ready-made Hudson Taylor when He has some special work to be done. He looks for a man, preferably a weak man, and then makes him ready and fit for His work. What God did for Hudson Taylor He will do for the least and simplest of His children, if they will obey His voice and follow where He leads. This is my testimony.