keenest subject of controversy between us’. The way Calvin argues here is very revealing: ‘Wherever the knowledge of it is taken away, the glory of Christ is extinguished.’ In the Reformation mind-set, salvation is a gift of God’s grace alone (sola gratia), found, not in any pope or Mass, but in Christ alone (solus Christus), and received by simple faith alone (sola fide). And we can know this for certain only through Scripture (sola Scriptura).

