Matthew 25:3-7

They that were foolish took their lamps, and took no oil with them:

But the wise took oil in their vessels with their lamps.

While the bridegroom tarried, they all slumbered and slept.

And at midnight there was a cry made, Behold, the bridegroom cometh; go ye out to meet him.

Then all those virgins arose, and trimmed their lamps.