For half a century, luminaries like Karl Barth, Carl F. The story of "natural law" - the idea that God has written a law on the human heart so that ethical norms derive from human nature - in twentieth-century Protestant ethics is one of rejection and resurgence. Henry, and Cornelius Van Til cast a shadow over natural law moral reflection because of its putative link to natural theology, autonomous reason, associations with Catholic theology, and ethical witness devoid of special revelation. However, over the past twenty years, Protestant theologians have renewed their interest in the subject, often animated by debates on Christian involvement in the public arena and on matters of life, death, and gender and sexuality.