An Apology for the True Christian Divinity: Being an explanation and vindication of the principles and doctrines of the people called Quakers

"An Apology for the True Christian Divinity" by Robert Barclay is a religious treatise written in the late 17th century. The work serves as a defense of the core principles and doctrines of the Quaker faith. Through a series of theological propositions, Barclay seeks to clarify misconceptions and promote a deeper understanding of the faith he advocates. At the start of this treatise, Barclay addresses King Charles II and presents an earnest plea for recognition of the Quakers' sincerity and pacifistic beliefs in the face of historical persecution. He emphasizes that true knowledge of God comes through immediate revelation, accessible to all individuals rather than through ecclesiastical authority or extensive formal education. The opening section sets the tone for the rest of the work, wherein Barclay intends to articulate his defense of Quaker principles and the necessity of experiencing divine guidance directly, establishing a foundational argument for the spiritual enlightenment that characterizes Quaker belief.