Sin --Psalm 51
For a while I was battling with headlice with my kid. Psalm 51 really reminds me of that experience. Sin is like headlice, but the hardest part is those hidden nits, those eggs of the headlice. Sometimes we deal with the sin, we think they're all gone and have got rid off. But sin had also produced lots of nits, the hidden sinful thoughts while it was present. Those sinful thoughts seemed to be harmless for a while, they're hidden, hard to detect, but then after a while, whey their time's right, they'll hatch and the head will be full of lices again. So, we need to get rid of both live lices and the hidden nits. We need to deal with both outward sin and also every sinful thoughts that's hidden inside of us.
Dealing with lice is easy. All you need to do is brush them out. But dealing with nits is hard. I tended to just let go of it. It takes hours of work:searching, pulling out, going over and over, can't miss one. Cause if you miss even one egg, then that egg will hatch, and then the hatched lice will lay more eggs, and the eggs will become more lices... Some people go through this lice problem for years, just because they can't be bothered to do what it takes to completely cleaning up the nits. But actually when you set your mind to it, when you're determined enough, the job can be done, just needs a bit extra effort than you'd normally willing to do. When you're so fed up with this problem, when you're so sick of kids keep being sent home, when you're so tired of having to do this over and over and over every day, you actually make up your mind one day and say, ok, this is it, I'd just have to do it today and get rid the whole lot, no matter what it takes. Then actually it's done before you know it. Searching inside your heart and mind, and finding all the secret sinful thoughts are painful, but when you're determined and are willing to crush them and get rid of them, that's the time when you can really be set free.