According to Christian ethical views other than Divine Command Theory, what exactly made Adam and Eve's eating the forbidden fruit evil?

For scoping purposes, let's assume that [Divine Command Theory](https://iep.utm.edu/divine-command-theory/) is false. This means that explanations of the form *"X is evil because God said so"* would be out of scope. Having clarified that, if we bring our attention to the first sin committed by humanity, the eating of the forbidden fruit by Adam & Eve, how can we sufficiently explain that this act was "evil", "wrong" or "sinful" according to a theory of ethics consistent with Christian theism but different from DCT? God commanded Adam & Eve not to eat nor touch the fruit from a specific tree. What made breaking this commandment "evil", "wrong" or "sinful", if we rule out Divine Command Theory from the pool of candidate explanations? Please make the theory of ethics you are coming from explicit in your answer. Thanks.