Born to a Myth:
Aineo you say: Luke makes it clear that John the Baptist was the biological son of Zacharias and Elizabeth. So I wonder where you get the notion that John was the result of a virgin birth.
Starjade says: Actually neither Jesus nor John were of virgin births that is a myth. But as the story goes John the Elisebeth and Mary both fell pregnant together at the same time in the same place and by the same means. Christians claim by some holy thingy. They both became pregnant as the story goes exactly the same way.
Odd that Mary is said to have gone to such lengths to visit Zacharias. Odd that this is the tale of how she got pregnant. Still there is no tale of Zach having any relation with his wife. The tale goes that Elisebeth got pregnant just as Mary did. Hence the mythical births are acclaimed the same.