Have you ever wondered why all cleaners say "Removes 99.9% of all germs"? Why not 100%?
This reminded me of how no matter how hard we try, we are 99.9 % without Jesus. We would never be able to be with God, if it wasn't for Jesus dying on the cross for us. He removes 100% of our sins, every time we are truly sorry for them. Even the worst of sins, like murder, stealing, fighting- all that is washed away.
You may try different 'cleaners', but none of them get you 100% clean like Jesus does.