Acts 16:22-26

A great crowd gathered, and all the people joined in to come against them. The Roman officials ordered that Paul and Silas be stripped of their garments and beaten with rods on their bare backs. After they were severely beaten, they were thrown into prison and the jailer was commanded to guard them securely. So the jailer placed them in the innermost cell of the prison and had their feet bound and chained. Paul and Silas, undaunted, prayed in the middle of the night and sang songs of praise to God, while all the other prisoners listened to their worship. Suddenly, a great earthquake shook the foundations of the prison. All at once every prison door flung open and the chains of all the prisoners came loose.