1001 B
the jailer
This could mean ‘the official in charge of the jail.’
so he got ready to kill himself
The connecting word so introduces a reason and result relationship. The reason was the jailer was afraid of the Roman authorities because he thought the prisoners had escaped. The result is he intended to kill himself. (See: rc://en/ta/man/translate/grammar-connect-logic-result)
But Paul saw him and shouted
The connecting word But introduces a contrast relationship. You would expect that the prisoners had escaped and that the jailer will kill himself. Instead Paul stops him from killing himself, and tells him that all the prisoners are still in the jail. (See: rc://en/ta/man/translate/grammar-connect-logic-contrast)
We
Some languages have a special form of the word We which does not include the person being talked to. Here the We does not include the jailer, only Paul and the rest of the prisoners. (See: rc://en/ta/man/translate/figs-exclusive)