I don't always act the right way or say the right thing, and I end up regretting it, because my beliefs and true nature do not match up to the wrong thing I said or did. It is good to have ethical beliefs, but I do not believe we are saved by them, because behavior holds more accountability than beliefs
Your quote makes me think of a religion that believes the people who follow it will be saved as long as they admit their "sin" in confession. That is good if the person is truly regretful and learned from their mistake, but most people aren't and don't.
Your quote also makes me think of capitol punishment and the opposing viewpoints. I believe in capitol punishment for people who murder, especially those who commit more than one murder, because murder is either planned or committed by someone who truly has bad values and/or a bad nature. I believe this, because murdering someone would take a lot of negative internal energy, something that is a part of them.