Mary could have been killed, Joseph shunned. Getting pregnant outside of marriage, especially while engaged to a man who’s not the father, has social consequences today, 2,000 years ago it could’ve been fatal. There was reason to fear. Yet, the most frequently repeated phrase in the Christmas story (and, consequently the most frequently repeated command in all of scripture) is “Be Not Afraid.”
Where God is, is life – the Breath of Life and the Spirit of Life. Just breathe.