Thematic Bible: An angel appears and testifies to the innocence of his betrothed

So Joseph her husband, being righteous and not wanting to disgrace her, intended to divorce her secretly. But [as] he was considering these things, behold, an angel of the Lord appeared to him in a dream, saying, "Joseph, son of David, do not be afraid to take Mary [as] your wife, for what has been conceived in her is from the Holy Spirit. And she will give birth to a son, and you will call his name 'Jesus,' because he will save his people from their sins." read more.
Now all this happened in order that what was spoken by the Lord through the prophet would be fulfilled, saying, "Behold, the virgin {will become pregnant} and will give birth to a son, and they will call his name Emmanuel," which is translated, "God with us." And Joseph, [when he] woke up from sleep, did as the angel of the Lord commanded him, and he took his wife