This is the fundamental flaw of giving man the power to choose what is right and wrong.
Think before you answer these questions...
Did you or did you not CHOOSE
to "believe" and have faith in a standard of right and wrong?
Do you or do you not choose to believe that your "belief" in what is right and wrong, is right?
Can you say to yourself without any doubt, self delusion, oustide influence or lies that you KNOW
and truly BELEIVE
that what you claim to believe is true and that you do actually believe it?
For the last question a specified context is needed. One would have to determine what it is you believe in.
The reason why I take this direction here is because there is no need for conflict on this topic from anyone recently speaking here on it.
By this I mean that we all agree on the general morals, the main thing in dispute, besides what is an acceptable way of living and behaving, is basically semantics, hence my emphasis on highlighted words above.
Within these semantics lies points that Decius, Better, and myself are trying to convey.
One is that in your stating about man's faultiness in deciding what is right and wrong you are unwittingly contradicting yourself as you express your chosen definition of right and wrong.
The fact that you claim, without any factually supportable reason, that your accepted choice is not yours but God's that you have found, neither makes that true, nor changes the fact that YOU DECIDE AND CHOOSE IT!
The other point comes in the loss of understanding that regardless of chosen religions or otherwise that we all agree on general and basic social moral standards.
A significance of this is what Decius is saying about your expressed choice of religion, that it doesn't take one first off to have common sense, compassion, or "morals". But also that it is indeed a dependency, illogical, contradictory, and therefore detrimental to yourself and others.
What so many "Christians" fail to grasp is that morals aren't a Christian or religious creation, nor does it take self punishment, degradation, guilt or fear to have morals and common sense.
And what I always add is that because common sense makes sense in the bible, and that it can even be nice to have a handy guide and group to remind or even enforce to degrees at times, does not make it true, nor right or wrong,
To say you have faith in the "good" (as well as the "bad" ) of the universe, its creator(s), and man, the bible, etc. is one thing and sensible.
To say that you have faith and believe that Christianity and the Bible are right and true as a whole is another thing entirely, and not very logical.
None of us would bother telling you these things, which should not be considered blaphemous or wrong of you to feel or ponder, if we didn't sense good and intelligence in you, especially intelligence and further good being expressed but hindered by your fear and dependency/addiction to what you are trying to convince yourself and others that you believe, when you only believe half of it, the parts that make sense.
Most Christians think God tests them, especially in terms of separating the damned from the saved, I often try to add the perspective that what if he were only to save those who realize and overcome the faultiness of mainstream religions/cults and simply follow God's gift of common sense morals.
And if you don't think faith and worship based religions are cults, including Christianity, then you don't know the definition of the word cult.
Semantics... more important than you think.