John Barclay is Lightfoot Professor of Divinity at Durham University. He is a distinguished New Testament scholar and books include Obeying the Truth: A Study of Paul’s Ethics in Galatians (T&T Clark 1988), Jews in the Mediterranean Diaspora from Alexander to Trajan 323 BCE – 117 CE (T&T Clark 1996), Colossians and Philemon (JSNT 1997). His Paul and the Gift (Eerdmans, 2015) has been hailed as the most significant book on Paul since E.P. Sanders’s Paul and Palestinian Judaism in 1977.