When the angels announced the birth of Jesus, although they were observers and participants, they could not know firsthand the joy salvation brings. In the incarnation, God the Father did something that was truly unique and unmistakable: He sent His Son, Jesus, to save from their sin all those who would trust in Him. At the center of the Christmas story is not a cradle but a cross—the emblem of the extent to which God went to show His love for us.