Omniscience is the property of having complete or maximal knowledge. Along with omnipotence and perfect goodness, it is usually taken to be one of the central divine attributes. One source of the attribution of omniscience to God derives from the numerous biblical passages that ascribe vast knowledge to him. St. Thomas Aquinas (Summa Theologiae I, q. 14), in his discussion of the knowledge of God, cites such texts as Job 12:13: “With God are wisdom and strength; he has counsel and understanding” and Rom. 11:33: “O the depths of the riches and wisdom and knowledge of God!” Another source is provided by the requirements of formulating one or another theological doctrine. For example, the doctrine of divine providence holds that God has a plan for the world according to which all things are in his care and work out according to his good will. As Flint puts it,