God and Morality: Separate Issues

[Stempy]

"God is morality"...I've never heard anyone make that statement before. What I have heard presented is this:
Option 4: Moral terms are grounded in the nature of God. They are grounded in the sense that goodness is one of God's properties, in exactly the same way that charge and mass are properties of fundamental particles. If fundamental particles do not exist, there is no such thing as charge and mass. In the same way (on this view), if God does not exist, there is no such thing as goodness.

Options "4" and 3: Distinction without a difference.

If that is what you meant by "God is morality" then fine. But there is no necessity for an advocate of Option 3 to say that "We know God is good because God is good". In fact, that statement has nothing to do with the ontology of morality (which is the what the traditional Moral Arguments are about) but epistemology.