Isaiah 7:14

14 Therefore the Lord himself will give you a sign: The virgin will conceive and give birth to a son, and will call him Immanuel.

Matthew 1:21

21 She will give birth to a son, and you are to give him the name Jesus, because he will save his people from their sins.”

Luke 2:6-7

6 While they were there, the time came for the baby to be born, 7 and she gave birth to her firstborn, a son. She wrapped him in cloths and placed him in a manger, because there was no guest room available for them.