Matthew 1:18-19

The birth of Yeshua [God is Salvation] was in this way: It came to pass when his mother was betrothed to Yosef [he will add], before he had intercourse with her, she was found with Child by Ruach HaKodesh (Holy Spirit [Ruach]) (which means: The Holy Spirit [Ruach]) . Yosef [he will add] was a righteous man and did not wish to dwell with her nor to expose her by bringing her to shame or to bind her over to death. He instead wished to conceal her.