Summary of text [comment] page 21

Schoonenberg argues: The whole of creation is assumed with God in the covenant of grace.  That is, the covenant of grace is natural.

So when one sins in the sphere of natural relations, this sin is ultimately assumed in the dialogue between “God who bestows” and “man who receives” grace.

Sin always possesses a supernatural character.

[This is consistent with the way that the natural philosophical axis intersects with the moral religious axis in the realm of actuality.]