English Standard Version
When the jailer woke and saw that the prison doors were open, he drew his sword and was about to kill himself, supposing that the prisoners had escaped.New International Version
The jailer woke up, and when he saw the prison doors open, he drew his sword and was about to kill himself because he thought the prisoners had escaped.Catholic Public Domain Version
Then the prison guard, having been jarred awake, and seeing the doors of the prison open, drew his sword and intended to kill himself, supposing that the prisoners had fled