"The heart is stone before grace."

The heart is stone before grace. No stone can cooperate with any that would turn it into flesh, since it hath no seed, causes, or principles of any fleshly nature in it. Since we are overwhelmed by the rubbish of our corrupted estate, we can no more co-operate to the removal of it than a man buried under the ruins of a fallen house can contribute to the removal of that great weight that lies upon him. Neither would a man in that state help such a work, because his lusts are pleasures; he serves his lusts, which are pleasures as well as lusts, and therefore served with delight.

—Stephen Charnock