What is the third 'holiness mandate'?

David Sandifer was born and raised in France, of American parents. He holds a Ph.D. in history, from the University of Cambridge (2014). He spent 20 years in pastoral ministry in the U.S. and Australia, and also worked for a Christian public advocacy organisation in Australia, where he co-launched an on-going campaign to protect children from online pornography. He currently lectures in the area of practical theology and ethics at Tyndale Theological Seminary in the Netherlands. Here, David answers questions from the talk "How to Be a Christian in Academia: The Three Mandates", given at the 2024 European Leadership Forum.