For the essence of sin is man substituting himself for God [Gen. 3:1-7], while the essence of salvation is God substituting himself for man [2 Cor. 5:21]. Man asserts himself against God and puts himself where only God deserves to be; God sacrifices himself for man and puts himself where only man deserves to be.
Christians who neglect the Bible simply do not mature.
We need to repent of the haughty way in which we sometimes stand in judgment upon Scripture and must learn to sit humbly under its judgment instead.