Daniel Castelo is the William Kellon Quick Professor of Theology and Methodist Studies at Duke Divinity School. He has taught intensive Wesleyan theology courses in Mexico, Honduras, and Brazil and taught for fourteen years in the Pacific Northwest before coming to Duke. Dr. Castelo began his publishing career exploring the topic of divine attribution. This work resulted in a monograph for which he won a John Templeton Award for Theological Promise.

Since, he has considered questions surrounding a Christian account of theodicy, the doctrine of God broadly, and the theological interpretation of Scripture. He is currently interested in developing and connecting themes within pan-Methodism, Latinx theology, and pneumatology to broader conversations in the fields of Christian spirituality, doctrinal theology, and constructive theology.

Clark H. Pinnock was a Christian theologian, apologist, author, and Professor Emeritus of Systematic Theology at McMaster Divinity College. In Flame of Love, he explores the vital Christian doctrine of the Holy Spirit. Writing out of wide learning and deep personal passion, he points the way to restoring the oft-neglected Spirit to centrality in the life and witness of the church. Pinnock's book is both catholic—respecting the beliefs and worship of the historic church—and evangelical—drawing particularly on the heritage of the Reformation. Always in sight is the mission of the church, because "people want to meet the real and living God and will not be satisfied with a religion that only preaches and moralizes."

For this second edition, theologian Daniel Castelo draws from his experience using Flame of Love in the classroom to add notes with helpful commentary and brief reflections on each chapter's main themes and contributions. While the classic text is preserved, the book becomes even more accessible to contemporary readers.