The above line--which may be seen inscribed on Luther's tomb at Wittenberg--is the opening sentence and key-note of the Reformer's grandest hymn. The forty-sixth Psalm inspired it, and it is in harmony with sublime historical periods from its very nature, boldness, and sublimity. It was written, according to Welles, in the memorable year when the evangelical princes delivered their protest at the Diet of Spires, from which the word and the meaning of the word "Protestant" is derived. "Luther used often to sing it in 1530, while the Diet of Augsburg was sitting. It soon became the favorite psalm with the people. It was one of the watchwords of the Reformation, cheering armies to conflict, and sustaining believers in the hours of fiery trial." "After Luther's death, Melancthon, his affectionate coadjutor, being one day at Weimar with his banished friends, Jonas and Creuziger, heard a little maid singing this psalm in the street, and said, 'Sing on, my little girl, you little know whom you comfort:'" A mighty fortress is our God, A bulwark never failing; Our helper He, amid the flood Of mortal ills prevailing. For still our ancient foe Doth seek to work us woe; His craft and power are great, And, armed with cruel hate, On earth is not his equal. * * * * * The Prince of Darkness grim-- We tremble not for him: His rage we can endure, For lo! his doom is sure, One little word shall fell him. That word above all earthly powers-- No thanks to them--abideth; The Spirit and the gifts are ours, Through Him who with us sideth. Let goods and kindred go, This mortal life also; The body they may kill, God's truth abideth still, His kingdom is for ever. Martin Luther was born in Eisleben, in Saxony, Nov. 10, 1483. He was educated at the University of Erfurth, and became an Augustinian monk and Professor of Philosophy and Divinity in the University of Wittenberg. In 1517 he composed and placarded his ninety-five Theses condemning certain practices of the Romish Church and three years later the Pope published a bull excommunicating him, which he burnt openly before a sympathetic multitude in Wittenberg. His life was a stormy one, and he was more than once in mortal danger by reason of his antagonism to the papal authority, but he found powerful patrons, and lived to see the Reformation an organized fact. He died in his birthplace, Eisleben, Feb. 18th, 1546. The translation of the "Ein feste burg," given above, in part, is by Rev. Frederick Henry Hedge, D.D., born in Cambridge, March 1805, a graduate of Harvard, and formerly minister of the Unitarian Church in Bangor, Me. Died, 1890.