Mark 2:20

But the days will come, when the bridegroom will be parted from them, and they will fast then--when that day comes.

Luke 17:22

The day will come," he said to his disciples, "when you will long to see but one of the days of the Son of Man, and will not see it.

Matthew 26:31

Then Jesus said to them: "Even you will all fall away from me to-night. Scripture says--'I will strike down the shepherd, and the sheep of the flock will be scattered.'

John 3:29

It is the bridegroom who has the bride; but the bridegroom's friend, who stands by and listens to him, is filled with joy when he hears the bridegroom's voice. This joy I have felt to the full.

John 7:33-34

On which Jesus said: "I shall be with you but a little longer, and then I am going to him who sent me.

John 12:8

The poor you always have with you, but you will not always have me."

John 13:33

My children, I am to be with you but a little while longer. You will look for me; and what I said to the Jews--'You cannot come where I am going'--I now say to you.

John 16:7

Yet I am only telling you the truth; it is for your good that I should go away. For otherwise the Helper will never come to you, but, if I leave you, I will send him to you.

John 16:28

I came out from the Father, and have come into the world; and now I am to leave the world, and go to the Father."

John 17:11

Now I am to be in this world no longer, but they are still to be in the world, and I am to come to thee. Holy Father, keep them by that revelation of thy Name which thou has given me, that they may be one, as we are.

John 17:13

But now I am to come to thee; and I am speaking thus, while still in the world, that they may have my own joy, in all its fullness, in their hearts.

Acts 1:9

No sooner had Jesus said this than he was caught up before their eyes, and a cloud received him from their sight.

Acts 3:21

But Heaven must be his home, until the days of the Universal Restoration, of which God has spoken by the lips of his holy Prophets from the very first.

Acts 13:2-3

While they were engaged in the worship of the Lord and were fasting, the Holy Spirit said: "Set apart for me Barnabas and Saul, for the work to which I have called them."

Acts 14:23

They also appointed Officers for them in every Church, and, after prayer and fasting, commended them to the Lord in whom they had learned to believe.

1 Corinthians 7:5

Do not deprive each other of what is due-unless it is only for a time and by mutual consent, so that your minds may be free for prayer till you again live as man and wife-lest Satan should take advantage of your want of self-control and tempt you.

2 Corinthians 6:5

In floggings, in imprisonments, in riots, in toils, in sleepless nights, in fastings;

2 Corinthians 11:2

I am jealous over you with the jealousy of God. For I betrothed you to one husband, that I might present you to the Christ a pure bride.

2 Corinthians 11:27

I have been through toil and hardship. I have passed many a sleepless night; I have endured hunger and thirst; I have often been without food; I have known cold and nakedness.

Revelation 19:7

Let us rejoice and exalt; and we will pay him honour, for the hour for the Marriage of the Lamb has come, and his Bride has made herself ready.

Revelation 21:9

Then one of the seven angels who had the seven bowls, and were laden with the seven last Curses, came and spoke to me. 'Come here,' he said, 'and I will show you the Bride, the Wife of the Lamb.'

Treasury of Scripture Knowledge

Summary

But the days will come, when the bridegroom shall be taken away from them, and then shall they fast in those days.

Bible References

Be taken

Matthew 26:31
Then Jesus said to them: "Even you will all fall away from me to-night. Scripture says--'I will strike down the shepherd, and the sheep of the flock will be scattered.'
John 7:33
On which Jesus said: "I shall be with you but a little longer, and then I am going to him who sent me.
John 12:8
The poor you always have with you, but you will not always have me."
John 13:33
My children, I am to be with you but a little while longer. You will look for me; and what I said to the Jews--'You cannot come where I am going'--I now say to you.
John 16:7
Yet I am only telling you the truth; it is for your good that I should go away. For otherwise the Helper will never come to you, but, if I leave you, I will send him to you.
John 17:11
Now I am to be in this world no longer, but they are still to be in the world, and I am to come to thee. Holy Father, keep them by that revelation of thy Name which thou has given me, that they may be one, as we are.
Acts 1:9
No sooner had Jesus said this than he was caught up before their eyes, and a cloud received him from their sight.
Acts 3:21
But Heaven must be his home, until the days of the Universal Restoration, of which God has spoken by the lips of his holy Prophets from the very first.

And

Acts 13:2
While they were engaged in the worship of the Lord and were fasting, the Holy Spirit said: "Set apart for me Barnabas and Saul, for the work to which I have called them."
Acts 14:23
They also appointed Officers for them in every Church, and, after prayer and fasting, commended them to the Lord in whom they had learned to believe.
1 Corinthians 7:5
Do not deprive each other of what is due-unless it is only for a time and by mutual consent, so that your minds may be free for prayer till you again live as man and wife-lest Satan should take advantage of your want of self-control and tempt you.
2 Corinthians 6:5
In floggings, in imprisonments, in riots, in toils, in sleepless nights, in fastings;
2 Corinthians 11:27
I have been through toil and hardship. I have passed many a sleepless night; I have endured hunger and thirst; I have often been without food; I have known cold and nakedness.