There was a reason I started the thread, Mary's firstborn, in General Baptist Discussions.
Could Mary's firstborn have been brought forth in iniquity?
IMHO
He was holy having been conceived out of Spirit.
1:20 ταῦτα δὲ αὐτοῦ ἐνθυμηθέντος ἰδού, ἄγγελος κυρίου κατ᾽ ὄναρ ἐφάνη αὐτῷ λέγων, Ἰωσὴφ υἱὸς Δαβίδ, μὴ φοβηθῇς παραλαβεῖν Μαριὰμ τὴν γυναῖκά σου· τὸ γὰρ ἐν αὐτῇ γεννηθὲν ἐκ πνεύματός ἐστιν ἁγίου
What if Joseph had, known, his wife, before, that in her conceived out of Spirit, had been brought forth? Would he have been named Jesus?
'Lo, the virgin shall conceive, and she (the virgin) shall bring forth a son, and they shall call his name Emmanuel,' which is, being interpreted 'With us he is God.'
and when the fulness of time did come, God sent forth His Son, come of a woman, come under law, that those under law he may redeem, that the adoption of sons we may receive; Gal 4:4,5
What woman, born, made did come ; What law, born, made, did come under the redeemer?
What law brought the need for the redeemer?
And they are both of them naked, the man and his wife, and they are not ashamed of themselves.
and the eyes of them both are opened, and they know that they are naked, and they sew fig-leaves, and make to themselves girdles.
and he saith, 'Thy sound I have heard in the garden, and I am afraid, for I am naked, and I hide myself.' And He saith, 'Who hath declared to thee that thou art naked? of the tree of which I have commanded thee not to eat, hast thou eaten?'
Please remember that it was foreordained before the foundation of the world there would be a redeemer. He would need to shed his precious blood wherein would be the soul being of the flesh.