'Appealed' in the Bible

Then Festus, having conferred with the council, answered, Thou hast appealed to Caesar. To Caesar shalt thou go.

But Paul having appealed to be kept for the cognisance of Augustus, I commanded him to be kept till I shall send him to Caesar.

But I, having found that he had done nothing worthy of death, and this man himself having appealed to Augustus, I have decided to send him;

And Agrippa said to Festus, This man might have been let go if he had not appealed to Caesar.