"The Once & Future Sin" Belgic Confession article 15

Gen. 5:1–11 

Job 14:1–6 

Matt. 15:10–20 

Rom. 5:12–21 

Have you ever wondered why it is harder to maintain good habits than it is to slip into bad ones? Why do we need to teach children, over and over again, how to obey while disobedience comes naturally? In short—why is it so much easier to do wrong? The answer is that we have a deep, ingrained problem called a sin nature, or "original sin." Original sin is the corruption that all people have inherited from Adam and that deserves death.