Religious leaders obscured this simple truth:
When you change your thinking, your action is changed
when you repeat the action, habit is created
when habit is maintained, destiny is created
and anyone can have control over his thought. But degree of control varies from person to person, hence we find sin in varying degree among people. So is the case with righteousness. There were many even Bible itself refers as blameless like Job because they had control over thought.
There is nothing as easier as changing your thought—something you can do any time anywhere without the help of an external savior. Suppose, you are tempted. See what happens if you withdraw your thought from it—temptation stops.