Christmas Eve: Must we believe in Bethlehem Ephrathah?

I once prayed with a man who was watching his grandmother pass away; she had largely raised him.  I prayed for a joyous eternity in the Kingdom.  He asked me if the story of Jesus in the New Testament was engineered to match Old Testament prophesy, and therefore, Jesus wasn't really the Messiah promised by the prophets.  We consider the classic passage in Micah that predicts a savior born in Bethlehem.  We look at the aspects of this prophesy that some say were used to tailor the story of Jesus' birth.  We consider the issue of faith, of believing in Jesus, and how questions like this should impact us.