Bethlehem and Calvary do indeed prove that the Lord Jesus Christ came from heaven to win us to himself.
St. Paul’s declaration that “Christ Jesus came into the world to save sinners” (I Tim.1:15) takes in both Bethlehem and Calvary. At Bethlehem Christ showed His love for man, not merely by coming to be with us, but by becoming one of us.
Luke, “the beloved physician,” wrote the famous “Gospel According to St. Luke” to show how truly man the Lord Jesus Christ was. Apart from sin,our Lord experienced all the emotions, the sorrows, the joys, the pains, the pleasures that we do. The Son of God actually became the Son of Man that the sons of men might become the sons of God.
But His life alone could not save us. His holiness would only expose our sin and condemn us. This is why the Apostle Paul declares that “Christ DIED for our sins” (I Cor.15:3), and that “WE HAVE REDEMPTION THROUGH HIS BLOOD, THE FOR-GIVENESS OF SINS, ACCORDING TO THE RICHES OF HIS GRACE” (Eph. 1:7).
Those who believe this and trust Christ as their personal Saviour rejoice in the Truth. Their hearts have been won to the Blessed One who came from heaven to Bethlehem and Calvary because HE loved them. source