Acts 16:23-28

23And having laid many stripes upon them they cast [them] into prison, charging the jailor to keep them safely;

24who, having received such a charge, cast them into the inner prison, and secured their feet to the stocks.

25And at midnight Paul and Silas, in praying, were praising 1God with singing, and the prisoners listened to them.

26And suddenly there was a great earthquake, so that the foundations of the prison shook, and all the doors were immediately opened, and the bonds of all loosed.

27And the jailor being awakened out of his sleep, and seeing the doors of the prison opened, having drawn a sword was going to kill himself, thinking the prisoners had fled.

28But Paul called out with a loud voice, saying, Do thyself no harm, for we are all here.