includes sex. The second reason is practical: what God wants is (by definition) in line with how the world actually is and how we are made. Because he is the Creator, living in line with his purposes is for our best. This is very hard for us to grasp. For example, the writer Will Self puts it well when he says that in our culture right and wrong are not part of “the very structure of the cosmos” but “a matter of personal taste akin to a designer label, sewn into the inside lining of conscience.”1