It became a reality. ( Isaiah 9 v 6 )

 In Matthew 2 we have recorded the visit of  the wise men from the east ,possibly from Persia, and they came seeking the king of the Jews, it is understandable that they went to Jerusalem initially, as it is very near Bethlehem. They assumed that the king of the Jews would be born in a palace, but not so, as they soon found out  ,when they met with  King Herod. The Jewish religious leaders pointed out from scripture, that it was to be in Bethlehem as foretold by the prophet Micah ( 5 v 2 ) that the Messiah was to be born. It is important to emphasize, that the coming of  Christ was foretold in the OT. In Isaiah  7 v 14/  9 v 6 we have his birth foretold,  in Isaiah 53, and Psalm 22, his suffering and death, in Psalm 16 v 10, we have His resurrection foretold. Christianity is not something  that we have made up , it was clearly foretold in scripture. Those Jews who made up the early Church, saw Christ  as the promised Messiah, that He was the one the scriptures clearly foretold was coming. Yes they followed  that prophecy given by  God, that became a reality, in that little town of Bethlehem, in a babe called Jesus, the Saviour of the world.