There are few heresies so pernicious as that of a God who faces nothingness (sin) more or less unaffected and unconcerned, and the parallel doctrine of man as one who must engage in independent conflict against it. We know well enough what it means to be alien and adverse to grace and therefore without it. A graceless God would be a null and evil God, and a self-sufficient, self-reliant creaturely subject a null and evil creature. If a doctrine of nothingness (sin) is not unyielding on this point, nothingness (sin) itself will triumph.
Karl Barth, Church Dogmatics, III/3, p. 360