Mary’s song, the Magnificat, has been a favorite text from the Christian tradition for millennia. The exhilaration of hope and the certainty that “the arc of the moral universe” really does “bend toward justice" continue to inspire both faith and activism, especially in the face of all the terrible, and terribly unnecessary, suffering that fills our world. With a long road still ahead of us, it can be hard to keep up with the injustices that fill the news, let alone act on them. Sometimes, the best we can do is keep singing, insisting that justice and mercy have a place. And the more of us who are singing it out, with our words and with our lives, the easier it will be to listen, and change the world.