The Wise and Foolish Virgins

The Parable of the Ten Virgins, also known as the Parable of the Wise and Foolish Virgins or the Parable of the ten bridesmaids, is one of the well known parables of Jesus. According to the Gospel of Matthew , the five virgins who are prepared for the bridegroom's arrival are rewarded, while the five who are not prepared are disowned. The parable has a clear eschatological theme: be prepared for the Day of Judgment. It was one of the most popular parables in the Middle Ages, with enormous influence on Gothic art, sculpture and the architecture of German and French cathedrals.

In the Parable of the Ten Virgins, Jesus tells a story about a party of virgins, perhaps bridesmaids or torchbearers for a procession, chosen to participate in a wedding. Each of the ten virgins is carrying a lamp or torch as they await the coming of the bridegroom, which they expect at some time during the night. Five of the virgins are wise and have brought oil for their lamps. Five are foolish and have only brought their lamps.

At midnight, all the virgins hear the call to come out to meet the bridegroom. Realising their lamps have gone out, the foolish virgins ask the wise ones for oil, but they refuse, saying that there will certainly not (Greek ou mē) be enough for them to share. While the foolish virgins are away trying to get more oil, the bridegroom arrives. The wise virgins then accompany him to the celebration. The others arrive too late and are excluded.

Then the Kingdom of Heaven will be like ten virgins, who took their lamps, and went out to meet the bridegroom. Five of them were foolish, and five were wise. Those who were foolish, when they took their lamps, took no oil with them, but the wise took oil in their vessels with their lamps. Now while the bridegroom delayed, they all slumbered and slept. But at midnight there was a cry, "Behold! The bridegroom is coming! Come out to meet him!" Then all those virgins arose, and trimmed their lamps. The foolish said to the wise, "Give us some of your oil, for our lamps are going out." But the wise answered, saying, "What if there isn't enough for us and you? You go rather to those who sell, and buy for yourselves." While they went away to buy, the bridegroom came, and those who were ready went in with him to the marriage feast, and the door was shut. Afterward the other virgins also came, saying, "Lord, Lord, open to us." But he answered, "Most certainly I tell you, I don't know you." Watch therefore, for you don't know the day nor the hour in which the Son of Man is coming.

...
Wikipedia