Just a little side thought to this eternal debate.

To follow a religion and be good at it is like anything else in life - you have to practice and apply. You can't take snippets here and there or ala carte selections. You have to embrace the tenents of whatever faith you are inclined to follow. And to support Kly's explanation, you have to try to be good; try to change; try to be humble. After the Ten Commandments Jesus Christ added another one - love one another. Tough to argue with that one.