Christianity’s political theology tips its hand at Christmastide. What’s in the cards for world order? Tidings of a coming “Desire of the Nations.” Songs of how “He rules the world with truth and grace, and makes the nations prove the glories of his righteousness and wonders of his love.” Promises of “peace on earth.” Juxtapose all this with our time, when trumpeting “America first” sounds to some like jingoist nationalism and to others like the return of national sovereignty.