King James Version
Then straightway they departed from him which should have examined him: and the chief captain also was afraid, after he knew that he was a Roman, and because he had bound him.English Standard Version
So those who were about to examine him withdrew from him immediately, and the tribune also was afraid, for he realized that Paul was a Roman citizen and that he had bound him.New International Version
Those who were about to question him withdrew immediately. The commander himself was alarmed when he realized that he had put Paul, a Roman citizen, in chains.