Acts 16:37-38
16:37 But Paul said to the police officers, “They had us beaten in public without a proper trial – even though we are Roman citizens – and they threw us in prison. And now they want to send us away secretly? Absolutely not! They themselves must come and escort us out!”
16:38 The police officers reported these words to the magistrates. They were frightened when they heard Paul and Silas were Roman citizens