The shepherds returned, glorifying and praising God for all the things that they had heard and seen, just as it was told them.
Peace on earth ...   How that echo of the angel's message must have thrilled and benefited them.  Of course, it was not for long.  Indeed the doors of the temple of Janus were closed when Christ was born, significant symbol of a world at peace; but the destruction of the Holy City itself loomed in the future.  The peace the angel mentioned could not come except to them who would love and honor Christ, making it impossible for many.