The covenant of works is a doctrine that was developed in the early centuries of the Reformed theological tradition, and there are several aspects of it that I think can summarize what it was getting at. For one thing, it affirms that at the beginning, when God created man, that he entered into a covenant with him. And so this covenant of works refers to God's original relationship with Adam. So, what it's affirming is that, just as later in history, God entered into covenant with his people in various ways at various times. So, even before the Fall God actually entered into this special relationship, a covenant relationship, with Adam. So, that's one aspect of this doctrine. A second aspect of this doctrine is captured in that term "works." And what this teaches is that, in this covenant, God required Adam to be obedient and that he was going to deal with Adam according to his obedience or disobedience. And perhaps it's helpful to see this in comparison with how God deals with us as people now. God doesn't offer us salvation, he doesn't offer us eternal life according to our good works. He offers it to us by faith in Jesus Christ. Well, God didn't go to Adam at the beginning and offer him a mediator, didn't offer him a savior, didn't offer him someone who would do the work for him. What he said to Adam was, "You obey me, and if you don't obey me, you will die," with the implication that if he would obey, he would live. And so that's why it's referred to as the covenant of works, because it was based upon whether or not he would be obedient to God's call. But, there's one other aspect of the doctrine that I think is worth mentioning, and that is the idea that God did not originally intend the human race simply to live in the Garden of Eden forever and ever and ever. Now, this is a historic Christian idea. You can go back to Augustine, or John of Damascus, or Thomas Aquinas and you find this conviction that God actually desired to have human beings in his, we might say, an eschatological fellowship, that he wanted human beings to be with him and rule with him, not only in the first creation but in a new creation. And so, the Reformed doctrine of the covenant of works has ordinarily taught that if Adam had been obedient and had been faithful to the commission that God gave him, that God at some point, in some way, would have blessed him with life in the new creation. He wouldn't have had to die in order to get there, but through that obedience God would have blessed him and blessed all of us in Adam with the blessings of everlasting life.