God’s purpose is to teach us in practical terms how to walk in this life in freedom from the influence of the world, our flesh and the devil. That doesn’t mean that He removes us from their influence, or that He removes them from this earthly realm. It does mean that as we learn to walk in confident victory day-by-day we become impervious to their influence, like brushing the dirt off of our shoes. This is one of God’s major goals, and He spends 24 hours of every day doing nothing but thinking about us and arranging our lives and circumstances to draw us into perfect union within our being and complete unity with Him.
