People often think that works they do that they think are righteous are going to outweigh any faults they do?
Imagine a motorist driving down a city street and deliberately driving through a red light. He is pulled over by a policeman who asks to see his driver’s license. Immediately the driver begins to defend himself. “Officer, I know I ran that red light—but I have never robbed anybody. I’ve never committed adultery. I’ve never cheated on my income tax.” The policeman smiles as he writes out the ticket, because he knows that no amount of obedience can make up for one act of disobedience. It is one Law, and the same Law that protects the obedient man punishes the offender. To boast about keeping part of the Law while at the same time breaking another part is to confess that I am worthy of punishment (Wiersbe, Warren W.: The Bible Exposition Commentary. Wheaton, Ill. : Victor Books, 1996, c1989, S. Ga 5)