In Scripture "madness" is recognized as a derangement proceeding either from weakness and misdirection of intellect or from ungovernable violence of passion. In one passage alone, (John 10:20) is madness expressly connected with demoniacal possession by the Jews in their cavil against our Lord; in none is it referred to any physical causes.
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Bibliography Information Smith, William, Dr. "Entry for 'Madness'". "Smith's Bible Dictionary". <http://classic.studylight.org/dic/sbd/view.cgi?number=T2774>. 1901.