Since He made this promise to David, and spoke through Esaias, He will assuredly bring the promise to pass. And what follows after the prophecy is in harmony with what I say, for he saith “Behold I have given him for a witness to the people, a leader and commander to the people. Behold nations that know thee not shall call upon thee, and peoples that understand thee not shall run unto thee.” Now this fits in with none that are sprung from David, for who of David’s descendants, as Esaias says, was made a ruler of nations? And what nations in their prayers ever called on David’s descendants as God?