Not without abandoning logic. There is no good and evil if there is no God. There is only, as Richard Dawkins says, dancing to one's DNA. Who decides what is good? Stalin, or you. One has no foundation to claim killing a child is evil. They may rationalize and say something like " well based on reason it is evil" How can one determine whose reason is superior, the killer's or yours? Well, if one rapes a women, I'm not going to say the rapist was just "dancing to his DNA". I would say it is ojectively wrong to rape, not because I or anyone else say it is, but because it is divine moral law.