Q4. (Matthew 1:23) How did the prophetic concept of the virgin conception and the name "Immanuel" find their fullness in the birth of Jesus to Mary? According to Matthew 1:22-23:"All this took place to fulfill what the Lord had said through the prophet: The virgin will be with child and will give birth to a son, and they will call him Immanuel' -- which means, 'God with us.'" Matthew was quote Isaiah 7:14. This explains why Mary was chosen. She was a virgin at the time of her marriage to Joseph. According to Jewish traditions, after Mary is brothen to Joseph, she must wait a year before the "marriage night." This is a test of faithfulness to her "husband," and to her faith. God knew this and was pleased that this event happen. After all, He is God and He knew the events that would lead up to this wonderful annoucement about His Son.