Samuel Pufendorf’s Of the Nature and Qualification of Religion (published in Latin in 1687) is a major work on the separation of politics and religion. Written in response to the revocation of the Edict of Nantes by the French king Louis XIV, Pufendorf contests the right of the sovereign to control the religion of his subjects, because state and religion pursue wholly different ends. He concludes that, when rulers transgress their bounds, subjects have a right to defend their religion, even by the force of arms.
The Divine Feudal Law sets forth Pufendorf’s basis for the reunion of the Lutheran and Calvinist confessions. This attempt to seek a “conciliation” between the confessions complements the concept of toleration discussed in Of the Nature and Qualification of Religion in Reference to Civil Society.