The close link between first and second “comings” of Jesus then becomes clear. Jesus is baptized by John. The Spirit descends, anointing Jesus afresh for his public ministry. The voice of God himself is heard, announcing him as his beloved Son. He is the one who will bring God‟s sovereign, saving rule “on earth as in heaven”. The double Advent theme thus dovetails perfectly together. The first coming is not only the preparation for the second one; it forms a kind of template for it. Learning to live appropriately between the two “comings”, under the rescuing rule of Jesus and in the power of his Spirit, is what it means to be Christian.
– N.T. Wright