Luther, and Latimer, and Baxter, and Wesley, and Whitefield, and Berridge, and Rowland Hill, were all keenly alive to the deceitfulness of man’s heart. They knew full well that all is not gold that glitters, that conviction is not conversion, that feeling is not faith, that sentiment is not grace, that all blossoms do not come to fruit. “Be not deceived,” was their constant cry. “Consider well what you do. Do not run before you are called. Count the cost.”