"An Eastern apologue tells us of Abdallah, to whom an evil spirit came at first as a fly, sipping an atom of syrup. He did not drive away the creature, and to his surprise it increased to the size of a locust. Being further indulged, the creature went on growing, and made such rapid increase that it became an enormous monster, devoured his substance, and in the end murdered him, leaving in the garden, where it slew its victim, a footprint six cubits long. Thus does sin grow upon men, till it becomes a giant habit, and slays them." - Spurgeon's Sermon Notes
Recommended reading:
The Forgotten Spurgeon, by Iain Murray
A Defense of Calvinism - by Charles Spurgeon