A. W. Tozer once wrote. "Our uncrucified flesh will rob us of purity of heart, Christ-likeness of character, spiritual insight, fruitfulness; and more than all, it will hide from us the vision of God's face, that vision which has been the light of earth and will be the completeness of heaven. Why do we build our churches upon human flesh? For we teach men not to die with Christ, but to live in the strength of their dying manhood. There must be a work of God in destruction before we are free!"