In Part 1, we saw that the Modified Divine Command Theory (MDCT) attempts to avoid the Euthyphro dilemma by postulating that God's nature is such that he would never command, say, torturing babies (and thus make torturing babies good). However, it was argued that this solution doesn't work, for in place of the original dilemma, we can now ask, is what God commands good only because he has that specific nature, or would his commands still be good if his nature were different?
If the former, then what makes his commands good is that they are compatible with the particular nature that he has, and not merely because they are his commands. But then God is not needed as a basis for morality, since in this case what makes something moral is just that it conforms to what any being with that nature would want (whether such a being exists or not). And that is inconsistent with the MDCT.
If the latter, however, then his commands would still be good even if his nature were entirely different. And that means that if he did command torturing babies, it would be good to do so — and thus we have not avoided the problem that plagued the traditional Divine Command Theory.
Unsurprisingly, the above criticism has itself come under attack by proponents of the MDCT. Their attempts to fix the theory, however, reveal a deeper problem — namely, that they have two incompatible views as to what is essentially moral. Like almost everyone else, they believe that what's essentially moral are acts that are kind, fair, etc. Yet they also believe — or want very much to believe — that what's essentially moral is whatever God wants.