David said to Solomon his son, Be strong and of good courage, and do it: don't be afraid, nor be dismayed; for Yahweh God, even my God, is with you; he will not fail you, nor forsake you, until all the work for the service of the house of Yahweh is finished.
"He (God) hath chosen Solomon ... to sit upon the throne of the KINGDOM OF JEHOVAH over Israel"  (1 Chronicles 28:5).  There is not a more preposterous statement in all the Bible than this one.  David truly believed, as did all Israel, that the earthly kingdom that God had given them was the kingdom of heaven.