This isn't nearly as comprehensive or coherent as Aurelian's post (which said quite eloquently all the philosophical reasonings I was trying to think of). But it's my perspective on this as a Christian. It's a little personal (as this sort of debate tends to be), but I've also tried to make it clear as well.
If I understand Enwiabe's post correctly, he's saying that in the case of religious people
1. Religion is founded on the premise that God exists, and is the only Being that we are answerable to.
2. Morality is founded on religion.
3. Decisions are founded on morality.
Thus our decisions are only answerable to God, and not our peers.
While this fact may seem disconcerting, it is only really problematic if the decisions made (that are answerable to God) are harmful ones.
To quote enwiabe:
“Under these circumstances, you can convince yourself that anything is good, moral behaviour. If the text of your religion says it is your duty to kill those who refuse to believe, then in your mind you are doing the work of a supreme, divine being. You are unanswerable to your peers, only to this imaginary "god".”
These circumstances, I assume, would be the fact that decisions are answerable to a “being” that may or may not exist depending on who you ask.
“Obviously, most humans naturally want to avoid conflict, so they will tend to not convince themselves that this is what 'god' wants, but provided you are answering only to an imaginary being, you can pick and choose whatever morals you like and they are unshakeable because hey, they're what god wants...
But in that moment, this person becomes god. How do you know what god wants? How do you know what god specifically wants you to do? You've specifically chosen those morals for yourself that you'd like to follow, and then justified them by saying "well god said so" but it wasn't actually god. It was simply you, pretending to be god.”
The implication I’m hearing from this is that religious belief allows for an arbitrary “pick and choose” of morals (ie the classic “I’ll ignore the bit about pig skins but wholeheartedly support the homosexuality is wrong bit” argument). While this may apply to some people, I believe it doesn’t for the majority of religious believers.
To clarify, I’m defending Christianity, not the concept of religion itself.
1. Christians base their morality on the Bible, trusting it as the Word of God.
2. Theologians (and therefore Christians who listen to said theologians) have generally interpreted the Bible in two parts.
(a) The Old Testament: an account of people’s relationship with God before the birth of Jesus
(b) The New Testament: an account of people’s relationship with God after the birth of Jesus.
Basically, there’s a set of rules for when there was no Jesus, and a different set of rules for when there is Jesus. Some call this inconsistency, I prefer the phrase “natural consequence of grace”.
3. Christians living in any sort of AD year will generally follow the set of rules under the “with Jesus” category.
And that’s that. There is no “picking and choosing of morals” and we are not god ourselves. We remain answerable to God, and even to earthly authority (iirc, the Bible has verses which remind Christians that they are to respect the leaders God as put in place on earth).
Look, to me, personally, as a Christian, my life is based primarily on a relationship with God, not a set of rules. The Bible is an extension of the relationship. Yes, it contains a lot of “do’s and don’t’s” but Christians have a different perspective on that - these rules help us live the way God wants us to.
Enwiabe’s conclusion that living by religious morality is a recipe for moral disaster hinges on the premises that (a) God is imaginary and (b) religious people tend to pick and choose which parts of their religion to follow.
Aside from the fact that using “God is imaginary” as a premise to prove that God is imaginary is obviously circular, I maintain that the Bible is not just something we pick and choose from. It’s a way of life I believe in unwaveringly.