An Excellent, Commendable Custom
Formerly, each Sunday, we used to sing Nicea’s confession of faith, formulated at the Council of Nicea, in the words: Et homo factus est, “And he became man,” and everyone fell to his knees. That was an excellent, commendable custom and it might well still be practiced, so that we might thank God from the heart that Christ assumed human nature and bestowed such great and high honor upon us, allowing his Son to become man.—Homily on the Day of the Annunciation, 1532 Martin Luther (House Postils III:292)