Because...

Matthew 1:19, 20

Because Joseph her husband was faithful to the law, and yet did not want to expose her to public disgrace, he had in mind to divorce her quietly. But after he had considered this, an angel of the Lord appeared to him in a dream and said, “Joseph son of David, do not be afraid to take Mary home as your wife, because what is conceived in her is from the Holy Spirit…”

We see already what kind of man Joseph is – he is concerned about the welfare of his wife – and he doesn’t want her to suffer shame by the people’s reaction to her news.  He was afraid.  Just like any of us would be.  I can’t even imagine.

God knew this would be a hard circumstance and he sent an angel to calm Joseph’s fear and to direct him as to what to do.

He first spoke to Joseph and affirmed who he was (son of David) and then he spoke to his fear (do not be afraid) and then he directed him (take Mary home) and finally he said why – because this is from the Holy Spirit.

Sometimes our reaction to even a strong word from God is fear.  Because of our lack of understanding and due to what we think others will say about us, we start to make plans to cover ourselves.

However, God is faithful to confirm his word when he speaks it to us.

And he is faithful to bring us peace and direction, as we obey.