Mt. 25:3-4: Should the 10 virgins know what's “ enough oil”? Is it possible to know? Was it their responsibility to know and prepare?
Whilst at the Mount of Olives, Jesus is answering his apostles' question about his coming and of the end of the age, obviously, the fulfillment will be observable by those living during his coming at the end of the age.
Matthew 24: 3 NASB " As He was sitting on the Mount of Olives, the
disciples came to Him privately, saying, “Tell us, when will these
things happen, and what will be the sign of Your coming, and of the
end of the age?”
One of the answers he tells them is the parable of the Ten Virgins:
Recommend reading the Parable of the Ten Virgins.
https://classic.biblegateway.com/passage/?search=Matthew+25%3A1-13&version=NASB;NET
Matthew 25:1-2 NASB
1 “Then the kingdom of heaven will be comparable to ten virgins, who
took their lamps and went out to meet the bridegroom. 2 Five of them
were foolish, and five were prudent."
The bridegroom is Jesus.
Earlier Jesus likened himself to the bridegroom:
Luke 5:34-35 (NASB)
34 "And Jesus said to them, “You cannot make the attendants of the
bridegroom fast while the bridegroom is with them, can you? 35 But the
days will come; and when the bridegroom is taken away from them, then
they will fast in those days.”
The Ten Virgins represents his followers, the little flock that will inherit the kingdom.
Luke 12:3,35 (NASB)
32 Do not be afraid, little flock, for your Father has chosen gladly
to give you the kingdom.35 “Be dressed in readiness, and keep your
lamps lit.
The fact that, five are foolish and the other five are wise, does not mean that half of his disciples that will inherit the kingdom, are wise , and the other are foolish.Earlier Jesus told them to “Be dressed in readiness, and keep your lamps lit."(Luke 12:35)Rather, Jesus is making the point that in connection with the Kingdom, each of his disciples has the capacity to choose to be vigilant or to be distracted.
Jesus continues.
Matthew 25:3-5 (NASB)
3 "For when the foolish took their lamps, they took no oil with them,
4 but the prudent took oil in flasks along with their lamps. 5 Now
while the bridegroom was delaying, they all got drowsy and began to
sleep
There is a delay but at midnight there is a shout.
Matthew 25:6 (NASB)
6 But at midnight there was a shout, ‘Behold, the bridegroom! Come out
to meet him.’
What is the situation of the virgins, did they have sufficient oil to keep their lamps
lit?,In other words were they spiritually vigilant?
Matthew 25:7-9 (NASB)
7 "Then all those virgins rose and trimmed their lamps. 8 The foolish
said to the prudent, ‘Give us some of your oil, for our lamps are
going out.’ 9 But the prudent answered, ‘No, there will not be enough
for us and you too; go instead to the dealers and buy some for
yourselves."
Those that were ready went to the wedding feast and the door shut, the others?
Matthew 25:10-12 (NASB)
10 "And while they were going away to make the purchase, the bridegroom
came, and those who were ready went in with him to the wedding feast;
and the door was shut. 11 Later the other virgins also came, saying,
‘Lord, lord, open up for us.’ 12 But he answered, ‘Truly I say to you,
I do not know you."
Matthew 25:13 (NASB)
Jesus finishes his parable.
13 "Be on the alert then, for you do not know the day nor the hour."
Clearly, Jesus is advising his faithful followers that in connection with his coming, they will need to “keep on the watch.” He will be coming, and they need to be prepared and vigilant,like the five prudent virgins, in order not to lose sight of their precious hope and miss out on the reward that can be theirs.