As mormons, people use the church, the scriptures, the words of the prophet and the nebulous concept of 'personal revelation' as their moral compass.
Since leaving, I've developed my own moral compass (okay, I did that before I left and that's why I didn't gel so well with a lot of what the church said.)
Mine is based on individual freedom. I believe everyone should be free to pursue the life that they choose, and it's not up to any other person to help them make the 'right decisions'. 'Evil' actions are those that limit personal freedom. 'Good' actions are those that help a person in their pursuits.
So obviously killing someone is pretty evil- it completely ends their ability to pursue their own goals. Abusing a child is evil- it emotionally stunts that child so they're unable to progress as they might have. Stealing someone's property is bad- it limits their freedom because the time they put in to obtaining that property is lost, and they will lose more time trying to regain what they've lost.
Sex, which the church sets right next to murder, is only bad insomuch that it limits a person (ie, gives them an std, an unwanted pregancy- which I could argue isn't so bad because my extended family has grown through adoption =) or if that person was forced into it, or if someone lied to get them into bed.
Lying is terrible because it limits people's freedom- they can't make good decisions for themselves when information is hidden from them. I really hate lies!
Your freedom ends where another person's begins.
So far this 'moral system' has answered most moral quandaries I run into. A grey area is children (how free are people to limit their children's freedom and to what degree should the government/bystanders step in to protect children?) and abortion (do you focus on the mother's freedom - having to give 9 months of her life and possibly limit her opportunities, or the baby's freedom to live? As I stated above, I'm incredibly biased about abortion/adoption issues because adoption gave me my two amazing nephews and I'm SO glad their mothers endured 9 months of pregnancy and then labor to allow them to live.)
Anyways, post-mormonism, what's your moral compass?
The Golden Rule is always a good rule to live by in my opinion. I like to think how I would react in a situation, how I would like to be treated, so I try to treat people in that manner. It makes the most logical sense to me. If you treat others like crap, they're gonna treat you as such in return. Well, sometimes they do it anyway, but more often that not it pays off.
As for abortion, I'm not in agreement with late term abortions. The child is not sentient in the early stages so I don't see a problem with it, but after a certain point in the pregnancy, for me, it's month 3, you shouldn't abort the child but place it for adoption. I may be biased for adoption because I placed my own baby boy for adoption. :P I do think that the mothers have an option to choose.
Wheather or not i will get caught. Just kidding, but in a sence we all do it. Taking ketchup packs from the fast food restarant. a pen from the office, or driving over the speed limit or what ever, The important question to ask is wheather your actions will hurt someone else.
I've thought a lot about this in the last couple of decades. My basic morality came not only from church, but from school. I was educated by left wing Commie Pinko Bastards. My elementry school was surrounded by UWM (Milwakee) from 1968-1974. The Hippies passed out tracts and fliers to me. I took them all. I read them all with my unsophisticated mind.
They made more sense than what i was taught in church. Some bald Hippie gave me a hand silkscreened poster of a Vietnamese girl working a rice paddy while bombs dropped. It was cool, I took it home at lunch and pinned to my bedroom wall. When I got home later the shit had hit the fan. I was told that the war was about defeating the NVA so the missionaries could convert the people to "The True Church". I Knew at 9 yrs old That this was bullshit.
Fastforward to now. I believe my moral compass comes from the literature I read in my late 20s to mid thirties. The 4 authors who had the most effect me were Dostoevsky, Camus, Hugo and Arthur C Clarke. These gave me my Humanistic viewpoint.
I think it's time to stop kowtowing to an angry murderous deity and start trying to progress humanity.
My moral compass boils down to two things:
1. Improve whatever you can. Primarily your self, your community, and the lives of those around you.
2. Never, ever treat people as things. I got that one from a Terry Pratchett book and the truth of it really hit home for me. Treating people as things is the start of most horrible things you can do.
That's been the basis of my moral compass since long before I questioned the veracity of the church. It hasn't failed me yet.