[BibChr]

It’s not a matter of the Greek texts; it’s that Luke’s genealogy seems to be trace natural descent through Mary, and Matthew’s His legal genealogy through Joseph.

[GunRunner]

That's certainly one explanation, although that would make Matthew's also a little contradictory; since he was not the father of Jesus, why would his lineage matter?

Then again, Mark, John, and Paul's books don't specifically mention the virgin birth.