Would you know the reason why so many hear the Gospel year after year, and yet remain unmoved by it? Their minds seem like Bunyan’s “slough of despond.” Cartloads of good instruction are poured into them without producing any good effect. Their reason is convinced. Their head assents to the truth. Their conscience is sometimes pricked. Their feelings are sometimes roused. Why then do they stick fast? Why do they tarry? It is their hearts which are in fault! Some secret idol chains them down to the earth, and keeps them tied hand and foot, so that they cannot move. They need a new heart. Their picture is drawn faithfully by Ezekiel, “They sit before you as my people, and they hear your words—but they will not do them—for with their mouth they show much love—but their heart goes after their covetousness.” (Ezek. 33:31).