RESPONSES TO THE PROBLEM OF EVIL AND SUFFERING BY THEISTS: SAINT THOMAS AQUINAS (13th Century Christiаn Philоsоpher): . Thоmаs Aquinаs argued against the problem of evil in an unusual way. Aquinas did not give a theodicy or an explanation how an omnibenevolent and omnipotent God could justify allowing evil. Instead, what did he do?