This sort of thing is often posited by religionists and yet it's really just a postulate with no foundation.
Who is God?
"He's smarter, stronger and able to leap tall buildings by just moving them about with his mind."
None of that argues for moral superiority.
If God's were higher than mine in any given instance in order for anyone to know it he or she would have to establish a standard for judgment and then make a comparison. If the standard is self-defined and self-defended then how is it in any way God's? If God did tell you, then don't you have to reason out whether or not it makes moral sense?