An Essay on Moral Obligation: With a View Towards Settling the Controversy, Concerning Moral and Positive Duties in Answer to Two Late Pamphlets, the One Entitled, The True Foundation of Natural and Revealed Religion Asserted Being a Reply to the Supplement to the Treatise on the Christian Sacraments, the Other [long Dash] Some Reflections Upon the Comparative Excellency and Usefulness of Moral and Positive Duties by Mr. Chubb