Repentance must go with remission, and you will see that it is so if you think a little upon the matter.  It cannot be that pardon of sin should be given to an impenitent sinner; this were to confirm him in his evil ways, and to teach him to think...

The Lord knows right well that you cannot change your own heart, and cannot cleanse your own nature; but He also knows that He can do both.  He can cause the Ethiopian to change his skin, and the leopard his spots.  Hear this, and be astonished: He can create you...