God reigns over all. He does as He pleases. Wayne Grudem writes, "God is continually involved with all created things in such a way that he (1) keeps them existing and maintaining the properties with which he created them; (2) cooperates with created things in every action, directing their distinctive properties to cause them to act as they do; and (3) directs them to fulfill his purposes."
(Systematic Theology, p. 315).