A “Divine Command Theory” might have been mentioned somewhere, but it’s impossible that would be in a “positive way.” I don’t think I had even heard of such a theory until I found it in the Ethics textbook I used to use. So if I ever mentioned it, that was to caution students about it. Again, Nelson’s diagram at http://www.friesian.com/ universl.htm#note-3 rules out anyone’s will as the source of morality.