We have often had occasion to remark that the very keynote of this Book of Acts is the working of Christ from heaven, which to its writer is as real and efficient as was His work on earth. Peter here traces his deliverance to 'the Lord.' He does not stay to mention the angel. His thoughts went beyond the instrument to the hand which wielded it. Nor does he seem to have been at all astonished at his deliverance. His moment of bewilderment, when he did not know whether he was dreaming or awake, soon passed, and as soon as 'the sober certainty of his waking bliss' settled on his mind, his deliverance seemed to him perfectly natural. What else was it to be expected that 'the Lord' would do? Was it not just like Him? There was nothing to be astonished at, there was everything to be thankful for. That is how Christian hearts should receive the deliverances which the Lord is still working for them. II. Note Peter's message to the brethren. James, the Lord's brother, was not an Apostle. That he should have been named to receive the message indicates that already he held some conspicuous position, perhaps some office, in the Church. It may also imply that there were no Apostles in Jerusalem then. We note also that the 'many' who were gathered in Mary's house can have been only a small part of the whole. We here get a little glimpse into the conditions of the life of a persecuted Church, which a sympathetic imagination can dwell on till it is luminous. Such gatherings as would attract notice had to be avoided, and what meetings were held had to be in private houses and with shut doors, through which entrance was not easy. Mary's 'door' had a 'gate' in it, and only that smaller postern, which admitted but one at a time, was opened to visitors, and that after scrutiny. But though assemblies were restricted, communications were kept up, and by underground ways information of events important to the community spread through its members. The consciousness of brotherhood was all the stronger because of the common danger, the universal peril had not made the brethren selfish, but sympathetic. We may note, too, how great a change had come since the time when the Christians were in favour with all the people, and may reflect how fickle are the world's smiles for Christ's servants. III. Note Peter's disappearance.