Wrapping this thread up with just a few final thoughts on the sign that Joseph was given.
An angel of the Lord appeared to him in a dream and said, “Joseph, son of David, do not be afraid to take Mary as your wife because the child conceived in her is from the Holy Spirit. She will give birth to a son and you will name him Jesus because he will save his people from their sins.”
This all happened so that what was spoken by the Lord through the prophet would be fulfilled: “Look! The virgin will conceive and give birth to a son, and they will name him Emmanuel,” which means “God with us.”
Except he wasn't given a sign. Neither was Mary. They just believed what the angel of the Lord said to them. Signs are given for the unbelieving. The believing have no need of them. They were never told to name the child Emmanuel, they were told to name him Jesus, and they did as they were told. They obeyed.
Mary's song was simple-- The angel said you are going to conceive and have a son who is going to be set apart. In response-
Mary said, “Yes, I am a servant of the Lord; let this happen to me according to your word.”
Joseph likewise was obedient to the angel of the Lord and did just what he was told to do-- When Joseph awoke from sleep he did what the angel of the Lord told him. He took his wife.
There was no sign given them. The phrase- 'This all happened so that.....' was added not because the angel proclaimed it a sign, but so that we would make the association. This, was like that. And as in the story told in Isaiah-- there was no miraculous birth absent of a father involved-- no "virgin" birth without anyone having sex, rather the 'young woman' conceived the way all women conceive-- the natural understanding.
“Ask for a confirming sign from the LORD your God. You can even ask for something miraculous.”
But he wouldn't. He didn't want to ask for a miraculous sign. So he was given quite an ordinary one.
But Ahaz responded, “I don’t want to ask; I don’t want to put the LORD to a test.”
--For this reason the Lord himself will give you a confirming sign. Look, this young woman is about to conceive and will give birth to a son. You, young woman, will name him Immanuel.
I then approached the prophetess for marital relations; she conceived and gave birth to a son.
The writer in Matthew makes the association. His words say-- go look at the story in Isaiah. This is just like that.
Of course it's so much easier to repeat the narrative we've been spoon-fed. To perpetuate the myth. These two brief mentions in but two gospels become the foundation for our faith? How flimsy. How feeble. How fatal. It separates him from us in a way that nothing else could. If he's not like us, then he's no example for us. The 'fatherless virgin birth' narrative doesn't even get a mention in the other two gospel accounts. A foundation that doesn't get included in the blueprint of our faith? Neither does Paul think it's worth mentioning-- not anywhere. Read the passages without your preconceived notions and apply a little critical thinking. Set aside your beliefs, teachings and notions and use a little common sense.
Apart from Joseph being the actual father the account in Matthew becomes completely unnecessary and superfluous. Of course, it's not.