Euthyphro dilemma

[SteveII]

That God is bound to his nature is just the definition of nature. If he was not bound to his moral goodness, then it would not be a nature, it would be a preference. Free will does not mean "can do anything". One's nature would always be a limiting factor to available choices. 

Wait.  What is the point of inventing the supernatural category to explain god's omni powers and undetectability if you're going to turn right around and say God's nature is the reason God's behavior itself is constrained by a more comprehensive 'nature' which apparently encompasses both what the rest of us call nature and your supernatural?  You seem to be biting yourself in the ass.

You are confusing the two very different definitions of the word:

na·ture
ˈnāCHər/
noun

1. the phenomena of the physical world collectively, including plants, animals, the landscape, and other features and products of the earth, as opposed to humans or human creations.
   "the breathtaking beauty of nature"
   synonyms:
   the natural world, Mother Nature, Mother Earth, the environment; More
   
2. the basic or inherent features of something, especially when seen as characteristic of it.
   "helping them to realize the nature of their problems"
   synonyms:
   essence, inherent/basic/essential qualities, inherent/basic/essential features, character, complexion More