Besides belittling sin, the flesh uses its wiles to drive every thought of God from our minds by filling the mind with thoughts of the world. The flesh knows a mind cannot be fixed on both God and earthly things (Colossians 3:2; I John 2:15). The main ploy of the flesh is to slip worldliness into the mind under the guise of necessity.
- Kris Lundgaard, The Enemy Within: Straight Talk About the Power and Defeat of Sin, copyright 1998, page 65