Psalm 89:1-4 KJV

I will sing of the mercies of the Lord for ever: with my mouth will I make known thy faithfulness to all generations. For I have said, Mercy shall be built up for ever: thy faithfulness shalt thou establish in the very heavens. I have made a covenant with my chosen, I have sworn unto David my servant, Thy seed will I establish for ever, and build up thy throne to all generations. Selah.