'Promised' in the Bible

And Jehovah has performed his word which he spoke; and I am risen up in the room of David my father, and sit on the throne of Israel, as Jehovah promised, and I have built the house unto the name of Jehovah the God of Israel.

And now, Jehovah, God of Israel, keep with thy servant David my father that which thou hast promised him saying, There shall not fail thee a man in my sight to sit on the throne of Israel, if only thy sons take heed to their way to walk in my law, as thou hast walked before me.

But Jehovah would not destroy the house of David, because of the covenant that he had made with David, and as he had promised to give to him always a lamp, and to his sons.