Hi Hazel, thanks for your post.
I don't necessarily think it is contradictory to claim that there is no "right or wrong", if that person is just refering to the moral realm. You can still believe that there are "right" and "wrong" meaning "true" and "false", but not necessarily believe that the
moral categories of "right" and "wrong" are objective realities.
And refering to "right" and "wrong" (or "good" and "evil" as in my OP) as subjective is not saying that they don't exist. Dreams are subjective, and they have an existence--in the mind of the dreamer. My love for my wife is subjective, but it truly exists nonetheless. When something is "subjective" it merely means that it is dependent upon the subject. I love my wife, but others might not even know her. (Some might even dislike her, but of course, they're just crazy.
)
Do you believe, as a Christian, that something is "good" because God commands it, and "evil" if God is against it? Does this mean that the categories of "good" and "evil" exist only as subjective judgments of God, and not as objective realities?
Peace