If a Christian's mind is not renewed his life is bound to be lopsided and narrow. Work becomes nigh to impossible for him. The popular teaching nowadays stresses that there should be love, patience, humility and so forth in the Christian life. These traits of the heart are highly significant, since nothing else can replace them. Even so, can we regard these as meeting all our needs? They are important but not inclusive. It is equally vital for a person's mind to be renewed, enlarged and strengthened.