But an angel of the Lord opened the jail doors in the night and let them out, and said to them,

"We found the prison securely locked up, with the sentries on duty at the doors, but on opening the doors we found no one inside."

suddenly there was such an earthquake that the jail shook to its foundations; all the doors flew open, and everybody's chains were unfastened.

It woke up the jailer, and when he saw that the doors of the jail were open, he drew his sword and was just going to kill himself, supposing that the prisoners had escaped.