Legend states the St. Gregory The nice (d. 604) heard the first three strains chanted by angels on a certain Easter morning in Rome although he walked barefoot in a great spiritual procession and which the saint thereupon additional the fourth line: “Ora pro nobis Deum. Alleluia.” Almighty, eternal God, https://vitapronobis65320.atualblog.com/37273134/considerations-to-know-about-vita-pro-nobis