The non-Barthian Barth

There is – amid the complete dissimilarity of divine and non-divine - a similarity between the eternal Word of God and the world created by this Word, but also and still more a similarity between the eternal, natural, only-begotten Son and those who are through Him God's adopted sons, who by grace are His children. In this similarity between Him and us we recognise the possibility of the revelation of God.

- Karl Barth, Church Dogmatics I/2, 34.

It seems here as though Barth concedes the main point of contention between himself and Emil Brunner in their debate over natural theology. Of course, Barth has just spent the last twenty or so pages arguing that it is only possible to "see" this possibility based on the prior reality of God's gracious initiative.