I'm not sure why it is, either. Myself and others have been presenting our exegetical case for our understanding of what we call the Covenant of Works, and as Dan noted earlier, the only response I have seen has largely been just saying that what we presented for some reason doesn't qualify as a positive exegetical case, rather than directly answering our points and showing specifically how our inferences are not necessary from the text. One major problem I still have with your dichotomy is that I still have not seen even one Scripture text directly cited to confirm or even point to it in any way. Likewise, how is your dichotomy compatible with the point I made regarding the two highest commandments and their relation to the Decalogue? If the various possible actions that constitute loving God and loving our neighbors count as good works, how can Jesus say that the Decalogue is completely founded on them if obedience to negative restraints does not count as good works? We will only get as far on this issue as we do on the obedience-works issue, because this one is completely contingent upon it. I say that Adam's refraining from eating the fruit for the time that he did was a good work, which is what he was continually doing to merit continual life up until the fall. So again, if we come to a mutual understanding regarding the obedience-works issue, then and only then will we also come to a mutual understanding on this issue.