In Luke 2:8–20, this sermon presents the manger as God’s deliberately chosen sign that reveals who Jesus is, what he has come to do, and how we are meant to respond. God announces good news of great joy not through spectacle but through a humble birth, declaring that the baby lying in a feeding trough is Savior, Christ, and Lord—rescuer, promised King, and God himself come near. The message comes first to shepherds, overlooked outsiders, showing that grace moves toward the lowly and spiritually disqualified. The manger points beyond itself: it displays God’s chosen humility, his radical accessibility, and his rescue plan that leads from Bethlehem to the cross. As the shepherds move toward the sign in faith, the sermon calls hearers to behold the manger, not sentimentally but attentively, and to respond by coming to Jesus in trust and surrender, recognizing that God has come all the way down to lift sinners up.