We will never be completely free from sin in this life. Although Jesus Christ came to live within us by His Spirit when we gave our lives to Him, our old sinful nature still resides within us, and as long as we live it will keep trying to assert itself.
But that must not keep us from pursuing perfection! To put it another way, that must not keep us from battling sin and embracing righteousness. God’s will is that we would become more and more like Christ – more like Him in our purity, our love, our service.
Not that I have already obtained all this, or have already been made perfect, but I press on to take hold of that for which Christ Jesus took hold of me. Brothers, I do not consider myself to have yet taken hold of it. But one thing I do: Forgetting what is behind and straining toward what is ahead.
Billy Graham – Wisdom For Each Day