Matthew 1:23-25

23 "See, a virgin will become pregnantand give birth to a son, and they will name him Immanuel,"which means, "God with us."

24 When Joseph got up from his sleep, he did as the angel of the Lord had commanded him and took Mary as his wife.

25 He did not have marital relations with her until she had given birth to a son; and he named him Jesus.