In this post, I argue that to be human is to be in need of both natural and special revelation.
In this article, Dr. Cornelis P. Venema discusses Herman Bavinck's view of the image of God. He quotes the following:
In this [Lutheran] theology the lines of demarcation between the spiritual and the worldly, between the heavenly and the earthly, are so sharply drawn that the result is two hemispheres, and the connection between nature and grace, between creation and re-creation is totally denied. The supernaturalist [or dualist] view is still at work here; the image of God stands alongside nature, is detached from it, and is above it. The loss of the image, which renders man totally deaf and blind in spiritual matters, still enables him in earthly matters to do much good and in a sense renders him independent from the grace of God in Christ . . . [In Reformed theology] sin, which precipitated the loss of the image of God in the narrower sense and spoiled and ruined the image of God in the broader sense, has profoundly affected the whole person, so that, consequently, also the grace of God in Christ restores the whole person, and is of the greatest significance for his or her whole life and labor, also in the family, society, the state, art, science, and so forth (RD 2:553–4)
He then makes a footnote comment:
Though it is anachronistic to put it this way, Bavinck offers in his criticism of the Lutheran view of the image of God an insightful assessment of what today is sometimes called the "two kingdom/natural law" view. Bavinck's point is that, just as sin pervasively corrupts all of human life "before God," so God's grace in Christ restores and perfects all of human life under Christ's lordship. To be restored and perfected as an image bearer of God is not to be elevated to a higher plane of supernatural life and existence, but to be perfected in the fullness of natural (that is, creaturely) human life in communion with God.
It is interesting to see how NL2K/R2K owes much to Roman Catholic nature/grace dualism.