[Canticle_of_Deborah]

but I know that a child's mother is the one that determines whether or not a child is Jewish.

Mary was also of the House of David as a descendant of Nathan.

[GoLightly]

Right, but the Kingship was a paternal line, not a maternal one. David was adopted into it.

[GoLightly]

I messed up in my statement to you. Scroll down to XeniaSt’s post to get the scoop.