Madonna of the Fir Tree, Marianne Stokes, 1925
From the Pope's homily for Midnight Mass:
the angels’ message is both promise and call at the same time. God has anticipated us with the gift of his Son. God anticipates us again and again in unexpected ways. He does not cease to search for us, to raise us up as often as we might need. He does not abandon the lost sheep in the wilderness into which it had strayed. God does not allow himself to be confounded by our sin. Again and again he begins afresh with us. But he is still waiting for us to join him in love. He loves us, so that we too may become people who love, so that there may be peace on earth.Saint Luke does not say that the angels sang. He states quite soberly: the heavenly host praised God and said: "Glory to God in the highest" (Lk 2:13f.). But men have always known that the speech of angels is different from human speech, and that above all on this night of joyful proclamation it was in song that they extolled God’s heavenly glory. So this angelic song has been recognized from the earliest days as music proceeding from God, indeed, as an invitation to join in the singing with hearts filled with joy at the fact that we are loved by God. Cantare amantis est, says Saint Augustine: singing belongs to one who loves. Thus, down the centuries, the angels’ song has again and again become a song of love and joy, a song of those who love. At this hour, full of thankfulness, we join in the singing of all the centuries, singing that unites heaven and earth, angels and men. Yes, indeed, we praise you for your glory. We praise you for your love. Grant that we may join with you in love more and more and thus become people of peace. Amen.