23:16 The keeper of the jail had heard with amazement the prayers and songs of the imprisoned apostles. When they were led in, he had seen their swollen and bleeding wounds, and had himself caused their feet to be fastened in the stocks. He had expected to hear from them bitter groans and imprecations, but he heard instead songs of joy and praise. With these sounds in his ears the jailer had fallen into a sleep from which he was awakened by the earthquake and the shaking of the prison walls.