And now you might think of applying the same notions to the Advent of Jesus, God with us. If you are open to applying your won reasoning, you might find that Jesus can be fully human without ever being a ‘fertilized egg’ (more accurately a fertilized oocyte; humans are not reptiles or chickens). Without using a sex cell from Mary, Mary could be a surrogate for gestating and bearing Jesus, without violating her vows/betrothal to Joseph. Think about it ...
Do you believe surrogate mothers commit a sin today? Is IVF morally acceptable?