Sin in the life of the church grieves the person of the Holy Spirit and quenches His power. If sin remains unchecked by the loving application of church discipline in a body of believers, the Holy Spirit must abandon such a church to its own carnal resources. The unavoidable result will be the loss of the Lord’s blessing until the sin is dealt with. The defeat of Israel because of the sin of Achan in Joshua 7 illustrates the principle.