Try this experiment: Take a tall drinking glass and place about two inches of coffee grounds in the bottom of the glass. Next, take the glass and place it under a faucet. Turn the water on full blast. Without turning off the water, allow the water to flow into the glass for a few moments.
You will begin to notice that the flowing water will move the coffee grounds out of the glass. Over time, the amount of coffee grounds in the glass will decrease. Eventually, the coffee grounds will be completely removed, leaving only flowing, refreshing water in the glass.
This is a powerful illustration of the sanctification process. God always works from the inside out. The glass obviously represents the temple of God (our flesh). The coffee grounds represent the residue of sin and strongholds. Our new nature desires to know and be with God. Our spirit is willing to have God transform our soul realm, thus we present ourselves under His flowing water. As His refreshing water flows into us, all the things that hinder His love from changing and permeating our soul realm are removed. Notice that our responsibility is to present our selves to God. He does the work of transformation and sanctification.
Sometimes when new believers begin to follow Christ they focus on the coffee grounds in their lives and mistakenly see themselves as sinners. New followers of Christ (not to mention the rest of us) need to remember that the soul realm is being redeemed, as represented by the water filling the glass (see Eph. 5:18). God does the work of transformation. We simply remember who He is and who we are. The newly formed you is the real you. Remember who you are; you are a saint not a sinner.