This essay, written by two colleagues in the United Faculty of Theology, Melbourne, one Catholic, the other Protestant, explores the different frameworks within which their respective traditions have articulated the doctrine of grace. The point of departure is an article by T.F. Torrance in 1965, in which he suggested that 'Reformed and Roman theology' were in a strong position to 'help one another' in working on the doctrine of grace. The essay explores the contributions of Karl Barth and Henri de Lubac to this discussion and notes a significant shift in Catholic thinking and a promising sign of convergence.