And as he thus spake for himself, Festus said with a loud voice, Paul, thou art beside thyself; much learning doth make thee mad.
Berean Study Bible (BSB) - Acts 26:24 >At this stage of Paul’s defense, Festus exclaimed in a loud voice, “You are insane, Paul! Your great learning is driving you to madness!”
Textus Receptus (TR) - Acts 26:24 >Ταῦτα δὲ αὐτοῦ ἀπολογουμένου, ὁ Φῆστος μεγάλῃ τῇ φωνῇ ἔφη, Μαίνῃ, Παῦλε· τὰ πολλά σε γράμματα εἰς μανίαν περιτρέπει.