St. Ambrose, who died 397, was not only the great advocate and defender of the order of virginity, but he displayed a high sense of dignity in guarding the purity of his church. He refused to allow the Emperor Marcellus to enter the church because he was stained with the blood of Gratian. He also opposed the Empress Justina in her Arian tendencies. He was also the champion who opposed the orator Symmachus, who pleaded for retaining the old heathen idols in their old places of worship. When the Emperor Theodosius, in the fourth century, had ordered what most people considered a brutal massacre at Thessalonica of seven thousand persons as they were sitting in a circus to witness a race, and this by way of punishment for a previous riot in the city, all eyes were turned to the Bishop of Milan to avenge this outrage. When the Emperor reached the city some days later, the bishop avoided meeting him, but wrote a letter, in which he said: "So bloody a scene as that at Thessalonica is unheard of in the world's history. I had warned and entreated you against it. You yourself recognised its atrocity. You endeavoured to recall your decree. And now I call on you to repent." Soon after, when Ambrose came back to Milan, the Emperor, as usual, presented himself at the hour of service. Ambrose met him in the porch, and thus spoke: "It seems your majesty has not repented of the heinousness of your murder. Your imperial power has darkened your understanding, and stood between you and the recognition of your sin. Consider the dust from which you spring. How can you uplift in prayer the hands which still drip with innocent blood, or receive into such hands the body of the Lord! Depart; add not sin to sin. Find in repentance the means of mercy which can restore you to health of soul." The Emperor humbled himself. For eight months as a penitent he abstained from presenting himself at Divine service. During the penance Theodosius bitterly complained that the Church of God was opened to slaves and beggars, but to him was closed, and with it the gates of heaven. He tried once to gain admittance, but Ambrose sternly refused until the Emperor promised to show openly his repentance by taking his place in the church among the penitents. The spirit displayed by Ambrose in this episode raised his reputation, and has left an example to all future bishops when contending against absolute power. WHY ST. AMBROSE FELL ASLEEP AT MASS.