When the centurion heard that
The question put by Paul, which strongly suggested that he was a Roman:
he went and told the chief captain; what Paul had said:
heed what thou dost;
or "art about to do"; lest some bad consequences should follow; lest he should affront the Roman people and senate, and lose his place, if not incur some corporeal punishment:
for this man is a Roman;
and it can never be answered to bind and beat a Roman.