when it is then asserted, ‘Mary had to be a virgin because Jesus is the Son of God’ and the one who will be named Emmanuel ‘can have no other father than the Father who is the first person of the Trinity’. This is to encourage taking ‘Son of God’ in the most literal sense and would have been news to other canonical writers like Paul or John who believed Jesus was the Son of God but did not think that that entailed that his mother was a virgin or that he did not have a father who gave him his descent from David.
