Sin is something that we don’t like to talk about – don’t like to think about. The apostle Paul describes the two forces which war within us. The Spirit of God and the sinful nature. The advice that he gives is to “walk in the Spirit”. He doesn’t say that our sinful nature is gone when we become children of God. There is a constant conflict within, the forces are as different as light and darkness and are enemies to one another. If we follow our flesh or humanness we will not be able to carry out the good that we want to so spend each day controlled by the Holy Spirit. As we read in the book of Galatians, God speaks to us about our sin in many different ways.
So I say, let the Holy Spirit guide your lives. Then you won’t be doing what your sinful nature craves. The sinful nature wants to do evil, which is just the opposite of what the Spirit wants. And the Spirit gives us desires that are the opposite of what the sinful nature desires. These two forces are constantly fighting each other, so you are not free to carry out your good intentions.