Matthew 25:10

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.’

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.