This noun can mean physical lightness or, metaphorically, levity or fickleness. In 2 Corinthians 1:17, Paul defends himself against the charge of acting with "lightness"—making plans carelessly or capriciously. He asks rhetorically if he made his plans according to the flesh, showing fickleness (saying "Yes, yes" and "No, no" at the same time). The term implies lack of seriousness or reliability. Classical usage includes lightness of weight or, in a moral sense, frivolity.