By this constitution a kingdom is acquired to God. But seeing Moses had no authority to govern the Israelites, as a successor to the right of Abraham, because he could not claim it by inheritance; it appeareth not as yet that the people were obliged to take him for God’s lieutenant longer than they believed that God spake unto him. And therefore his authority, notwithstanding the covenant they made with God, depended yet merely upon the opinion they had of his sanctity, and of the reality of his conferences with God, and the verity of his miracles: which opinion coming to change, they were no more obliged to take anything for the law of God, which he propounded to them in God’s name. We are therefore to consider what other ground there was of their obligation to obey him. For it could not be the commandment of God that could oblige them; because God spake not to them immediately, but by the mediation of Moses himself; and our Saviour saith of himself (John 5:31), “If I bear witness of myself, my witness is not true”; much less if Moses bear witness of himself, especially in a claim of kingly power over God’s people, ought his testimony to be received. His authority therefore, as the authority of all other princes, must be grounded on the consent of the people, and their promise to obey him. And so it was; for “the people” ( Exod. 20:18–19), “when they saw the thunderings, and the lightnings, and the noise of the trumpets, and the mountain smoking, removed, and stood afar off. And they said unto Moses, Speak thou with us and we will hear, but let not God speak with us lest we die.” Here was their promise of obedience; and by this it was they obliged themselves to obey whatsoever he should deliver unto them for the commandment of God.
And notwithstanding the covenant constituted a sacerdotal kingdom, that is to say, a kingdom hereditary to Aaron; yet that is to be understood of the succession after Moses should be dead. For whosoever ordereth and establisheth the policy, as first founder of a commonwealth, be it monarchy, aristocracy, or democracy, must needs have sovereign power over the people all the while he is doing of it. And that Moses had that