[THEOLOGY]. Five letters, viz. I. Some Conjectures concerning an Eternal Creation. II. That there was from Eternity a Fitness and Unfitness, in the Nature of Things, by Which the Will of God was always determined. III. Reflections on the Duties we owe to God and one another. Together with Remarks on some of the Jewish Revelations. In a Dialogue between Saul and Samuel. IV. That God was not the First Institutor of Sacrifices, wherein the Case of Abraham offering up his Son, is fully reasoned; and Moses vindicated from the Aspersion generally thrown upon him, of making God the Author of that Command. V. Concerning the Evidence necessary to ascertain the Divinity of those Revelations which require us to do Action.