Matthew 5:27-28
27Ye have heard that it was said, Thou shalt not commit adultery: 28but I say unto you, that every one that looketh on a woman to lust after her hath committed adultery with her already in his heart.
Scripture Testimony Index stories for this passage
Before Charles Spurgeon was saved, he was confronted by the demands of the law and his failure to keep them. He was especially convicted by the deeper spiritual laws that Jesus taught about lusting after a woman or your neighbor's goods.