From Spurgeon's Sermon Notes:
"A lady, who heard [George] Whitfield, in Scotland, preach upon the words, 'And the door was shut,' being placed near two dashing young men, but at a considerable distance from the pulpit, witnessing their mirth; and overheard one say, in a low tone to the other, 'Well, what if the door be shut. Another will open.' Thus they turned off the solemnity of the text. Mr. Whitfield had not proceeded far when he said, 'It is possible there may be some careless, trifling person here today, who may ward off the force of this impressive subject, by lightly thinking, 'What matter if the door be shut. Another will open.' The two young men were paralyzed and looked at each other. Mr. Whitfield proceeded: 'Yes, another will open. And I will tell you what door it will be: it will be the door of the bottomless pit! - the door of hell! - the door which conceals from the eyes of angels the horrors of damnation!'"