The work of grace once begun in the soul will never stand still. It will gradually "leaven the whole lump." Like leaven once introduced, it can never be separated from that with which it is mingled. Little by little it will influence the conscience, the affections, the mind, and the will, until the whole man is affected by its power, and a thorough conversion to God takes place.
Taken from the book Expository Thoughts on the Gospels by J.C. Ryle 1856