Sir, no one else in the history of the world has been a virgin and given birth. And second, that child would not be called Emmanuel, which means God with us. So please, enough with trying to make Isaiah 7:14 a double fulfillment. It was a prophecy about Mary as the virgin and Jesus as Emmanuel.
I feel now that you are arguing for the just for the sake of arguing. If you want to believe in another virgin birth other than Christ to Mary, then you are free to do so.
The lady in Isaiah was not a virgin. She was married, and from the Hebrew, she was with child.
Isaiah 7:14
Easy-to-Read Version
14 But the Lord will still show you this sign:
The young woman is pregnant
and will give birth to a son.
She will name him Immanuel
Note Mary was already pregnant when Matthew quoted Isaiah.
Matthew 1:18-25
Easy-to-Read Version
The Birth of Jesus the Messiah
18 This is how the birth of Jesus the Messiah happened. His mother Mary was engaged to marry Joseph. But before they married, he learned that she was expecting a baby. (
She was pregnant by the power of the Holy Spirit.) 19 Mary’s husband, Joseph, was a good man. He did not want to cause her public disgrace, so he planned to divorce her secretly.
20 But after Joseph thought about this, an angel from the Lord came to him in a dream. The angel said, “Joseph, son of David, don’t be afraid to accept Mary to be your wife.
The baby inside her is from the Holy Spirit. 21 She will give birth to a son. You will name him Jesus.[
a] Give him that name because he will save his people from their sins.”
22 All this happened to make clear the full meaning of what the Lord said through the prophet: 23 “The virgin will be pregnant and will give birth to a son. They will name him Immanuel.” (Immanuel means “God with us.”)
24 When Joseph woke up, he did what the Lord’s angel told him to do. He married Mary. 25
But Joseph did not have sexual relations with her until her son was born. And
he named him Jesus.
Jesus was named Jesus, not Immanuel. What gives?