Acts 12:15

12:15 But they said to her, “You’ve lost your mind!” But she kept insisting that it was Peter, and they kept saying, “It is his angel!”

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 27:22

27:22 And now I advise you to keep up your courage, for there will be no loss of life among you, but only the ship will be lost.