I heard a missionary from the heart of Africa say some years ago that he used to live among the savage tribes of the far interior. They were people of the lowest type. They wore no shred of clothing. But in their wild and barbarous religious dances they would swing round and round till they frothed at the mouth and fell down rigid. It was their way, said the missionary, of asking the supreme question: "What must I do to be saved?" This was a dramatic moment in this jailer's life. It was a moment big with blessing. Look at the picture. Two strange preachers have come to this Roman city of Philippi. Their preaching has brought them into conflict with the authorities. They are drawn before the magistrates. Their clothing is torn from them and they are severely beaten. It seems that this would have been shame enough and pain enough, but it was not. They were then turned over to a callous and cruel Roman jailer with the order that he should keep them fast. So he threw them into the inner dungeon and made their feet fast in the stocks. The place was foul and cold and dark. Their backs were lacerated and bleeding. And this wag their reward for seeking to bring to men the unsearchable riches of Christ. Now it was dark enough for these two. But they did not lose heart. First they prayed. I can imagine they prayed secretly and then they prayed aloud. And those people in prison heard the voice of prayer for possibly the first time in their lives. Now, real prayer always makes things different. It brings us a consciousness of God. And so as these men prayed their hearts grew warm and joyous till by and by prayer gives place to praise and they begin to sing. I have wondered what these people sang that night. It might have been the Twenty-third Psalm. Or they might have sung, "I will bless the Lord at all times. His praise shall continually be in my mouth. My soul shall make her boast in the Lord. The humble shall hear thereof and be glad." Or the Thirty-seventh Psalm would have sounded well in the darkness of that hideous dungeon,--"Fret not thyself because of evil doers, neither be thou envious against the workers of iniquity. For they shall soon be cut down like the grass and wither as the green herb." But I think the most likely of all is the Forty-sixth: "God is our refuge and strength, a very present help in trouble. Therefore will we not fear though the earth be removed and though the mountains be carried into the midst of the sea." Whatever they sang it was great singing. I think the angels opened the windows when they heard it. I think it made the very heart of our Lord glad. What a surprise it was to those in that gloomy old prison. They had heard the walls ring with groans and shrieks. They had heard bitter oaths in the night, but songs with the lilt of an irrepressible joy in them--they had never heard anything like that before.