spake for himself. Same as "answer for himself", verses: Act_26:1, Act_26:2.
Festus, &c. To Festus the resurrection of dead persons was as much beyond the range of possibility as it is to myriads to-day. "Modern views" have relegated the resurrection, as the hope of the believer, to the the background.
beside thyself = mad. Greek. mainomai. See Act_12:15.
learning. Literally letters (Greek. gramma). As we say "a man of letters". Compare Joh_7:15.
make = turn or pervert. Greek. peritrepo. Only here. A medical word.
mad = to (Greek. eis) madness. Greek. mania. Only here.