Here is an interesting question. In the Bible it states clearly that there will be those that will stand before God that had never heard of Him. Yet by their own conscience they will have led a moral life. What I also find interesting is in how the sentences were formulated. The implication is that these people were few and far between and that those that led amoral life’s far outnumbered them.
This is one reason I feel we have a Bible. A handbook of instructions of how we are to attempt to lead a good and moral life. The key book within the Bible is the book of Leviticus as I mentioned to a friend the other day that anything that requires a sacrifice in the early days of the Jewish faith after Mount Sinai can be called a sin and something that is not moral. There are also instances where a paragraph starts with (to paraphrase) God told Moses then fallowed a group of items not to do then ended with for “I am the Lord your God” or such, and that these things were also sins.
One reason for this is due to the fact that God did not want things that were taking place in Egypt and Canaan to enter into the lives of first the Jews and then those that would follow. Why? Because these sins were things that would lower and debase the human race which God does not desire.
The ultimate goal of God is for all of humankind to be second within the universe with only the trinity of God being greater. We are to be over the angels and we are to be given greater deeds and tasks for the glorification of God. Satan however does not wish to be ruled. In fact he desired to supplant God and in ways he still does for he seeks to have humans through the centuries worship him.
Many theories have been thrown out there as to how this is possible, but there is evidence not only in the Bible but throughout this planet that supports this. But I am getting off track.
What is necessary is that we read the Bible and especially the books like Leviticus, Deuteronomy, Proverbs and Psalms so we can see what is right and glorious in the eyes of God and in so doing do what is moral and right.