The jailer woke up, saw the prison doors standing open, drew his sword and was about to kill himself, thinking the prisoners had escaped.
In context
25Around midnight Paul and Silas were praying and singing hymns to God, and the other prisoners were listening, 26when suddenly there was an earthquake so violent that the foundations of the prison shook. All the doors flew open, and everyone’s chains came loose. 27The jailer woke up, saw the prison doors standing open, drew his sword and was about to kill himself, thinking the prisoners had escaped. 28But Paul shouted at the top of his voice, “Do yourself no harm! We are all here.” 29The jailer called for lights, rushed in and fell trembling before Paul and Silas.