Psalms 89:28-29

²⁸Into Without end I shall keep my mercy to him; and my testament faithful to him. (I shall hold onto my love for him forever; and faithfully keep my covenant with him.)

²⁹And I shall set his seed into the world of world; and his throne as the days of heaven. (And I shall establish his descendants forever and ever; and his throne for as long as the days of the heavens, that is, for as long as the heavenly bodies endure.)