From peri (around) and trepō (to turn). To turn around completely, to drive to madness. Festus accused Paul of being driven mad by too much learning.
Festus declared: 'You are out of your mind, Paul! Your great learning is driving you insane!' (Acts 26:24). Paul's response was dignified: 'I am not insane... What I am saying is true and reasonable.' The world often views passionate faith as madness. Devotion to Christ will always appear unreasonable to those who reject Him.