μαίνομαι

Μαίνομαι (maínomai) means to be out of one's mind, to rave, or to be regarded as mad. In John 10:20 some hearers dismiss Jesus as demon-possessed and insane. Their accusation follows His teaching about the Good Shepherd who lays down His life and takes it up again. Others answer that these are not the words of a demonized man and point to the opened eyes of the blind. John presents divided judgment about Jesus, not a clinical diagnosis.

The word also appears as an accusation against Rhoda (Acts 12:15), Paul (Acts 26:24), and a church whose uninterpreted speech would confuse outsiders (1 Cor. 14:23). Paul calmly denies Festus' charge and says he speaks true and reasonable words. These passages show how “madness” language can dismiss testimony that challenges expectations, while Corinthians warns that disorderly communication can genuinely appear unintelligible.

Pastoral teaching must avoid using this lexeme to stigmatize mental illness or mock people in crisis. The biblical accusations concern perceived irrationality, unbelievable testimony, or chaotic speech. Churches should test claims truthfully, communicate intelligibly, and offer compassionate care for mental health without equating psychiatric suffering with demon possession, sin, or spiritual inferiority.

The verb appears in accusations that Jesus, Rhoda, and Paul are mad and in Paul's warning about unintelligible congregational speech.