Of Virgins and Zygotes ...
In Matthews 1:20 an Angel comes to Joseph and tells him  not to divorce Mary (who has been found to be pregnant before their marriage), because:
In the Greek:
“... τὸ γὰρ ἐν αὐτῇ γεννηθὲν ἐκ πνεύματός ...”
“... for that [which is] in she [is] born by [the] Sprit ...”
If we believe God was incarnated in Jesus, was it from the moment of conception that He became incarnate, or was there a certain point where this happened. Did God in fact reduce himself into an embryo? If there is another point at which human life “begins” when is that?
It would seem that if Jesus was formed into Mary at conception --- then the soul, life, etc begins at conception. Therefore, did He become incarnate at the point Jesus’ zygote was conceived?
How then, should this inform our morality on matters of destructive embryonic stem cell research, and abortion?
 But as he considered these things, behold, an angel of the Lord appeared to him in a dream, saying, “Joseph, son of David, do not fear to take Mary as your wife, for that which is conceived in her is from the Holy Spirit. (ESV)