Acts 26:24

26:24 As Paul was saying these things in his defense, Festus exclaimed loudly, “You have lost your mind, Paul! Your great learning is driving you insane!”

Acts 25:24

25:24 Then Festus said, “King Agrippa, and all you who are present here with us, you see this man about whom the entire Jewish populace petitioned me both in Jerusalem and here, shouting loudly that he ought not to live any longer.