During this Advent/Christmas season we will turn again and again to introductory chapters of Matthew and Luke. Here I'd like to look at one passage in particular. “Now the birth of Jesus Christ took place in this way. When his mother Mary had been betrothed to Joseph, before they came together she was found to be with child of the Holy Spirit; 19 and her husband Joseph, being a just man and unwilling to put her to shame, resolved to send her away quietly. 20 But as he considered this, behold, an angel of the Lord appeared to him in...