Immanuel: "God with us".
His taking residence with us is His bestowal of power.
Power to be more, power to become:
To those who are "Wrapped in swaddling clothes"
He makes them the "sign" pointing to where salvation has to be acted upon.
To those who live in the manger, in the shanties, at the street corners, He promised a home in His Kingdom.
To the shepherds, the marginals, He brought good news, "fear not, peace, a Saviour is born."
Henceforth, the world would not stand still, for the power is there to stir up men's heart to hope, to resurrect.
For this reason, rejoice, the Lord has arrived!
Rejoice, for His arrival empowered us to be with Him in His heavenly Bethlehem.