Matthew 25:4-8

but the prudent ones took oil in flasks with their lamps.

Now while the groom was delaying, they all became drowsy and began to sleep.

But at midnight there finally was a shout: ‘Behold, the groom! Come out to meet him.’

Then all those virgins got up and trimmed their lamps.

But the foolish virgins said to the prudent ones, ‘Give us some of your oil, because our lamps are going out.’