Mark 2:20

But the days will come, when the bridegroom must be taken from them, and then they will fast in that day.

Luke 17:22

And He said to the disciples, The days will come, when you will desire to see one of the days of the Son of man, and will not see it.

Matthew 26:31

Then Jesus says to them, You will all be offended in me this night: for it has been written, I will smite the Shepherd, and the sheep of the flock shall be scattered.

John 3:29

The one having the bride is the Bridegroom: but the friend of the Bridegroom is the one standing and hearing him, rejoiceth with joy on account of the Bridegroom: This, my joy has been made complete.

John 7:33-34

Then Jesus said, Yet a little while I am with you, and I go to Him that sent me.

John 12:8

for you have the poor always with you; but you have not me always.

John 13:33

Children, I am still with you. You shall seek me, and as I said to the Jews, Whither I go, you are not able to come; and now I say to you.

John 16:7

But now I tell you the truth; it is profitable to you that I may go away. For if I go not away, the Comforter will not come to you; but if I may go, I will send Him to you.

John 16:28

I came out from the Father, and have come into the world: again, I leave the world, and go to the Father.

John 17:11

And I am no longer in the world, and they are in the world, and I come to thee. Holy Father, keep them through my name whom thou hast given unto me, in order that they may be one, as we are.

John 17:13

And now I come to thee; and speak these things in the world, that they may have my joy complete in themselves.

Acts 1:9

And having spoken these words, they looking, He was taken up, and a cloud received Him from their eyes.

Acts 3:21

whom it behooves heaven indeed to receive until the times of the restitution of all things which God spoke through the mouth of all his prophets from the beginning.

Acts 13:2-3

And they ministering to the Lord, and fasting, the Holy Spirit said, Now separate unto me Barnabas and Saul for the work to which I have called them.

Acts 14:23

And electing elders for them in every church, praying with fasting, they commended them to the Lord, on whom they had believed.

1 Corinthians 7:5

Do not defraud one another, unless it may be with consent for a time, that you may give attention to prayer, and again come together, in order that Satan may not tempt you on account of your incontinency.

2 Corinthians 6:5

in stripes, in prisons, in tumults, in labors, in vigils, in fastings;

2 Corinthians 11:2

For I am jealous of you with the jealousy of God: for I espoused you to one husband, to present you a pure virgin to Christ;

2 Corinthians 11:27

in labor and in toil, in vigils often, in hunger and in thirst, in fastings often, in cold and in nakedness.

Revelation 19:7

Let us rejoice and be glad, and give glory to him! because the marriage of the Lamb has come, and his wife has made herself ready.

Revelation 21:9

And one of the seven angels having the seven bowls filled with the seven last plagues, came and spoke with me, saying, Come, 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 says to them, You will all be offended in me this night: for it has been written, I will smite the Shepherd, and the sheep of the flock shall be scattered.
John 7:33
Then Jesus said, Yet a little while I am with you, and I go to Him that sent me.
John 12:8
for you have the poor always with you; but you have not me always.
John 13:33
Children, I am still with you. You shall seek me, and as I said to the Jews, Whither I go, you are not able to come; and now I say to you.
John 16:7
But now I tell you the truth; it is profitable to you that I may go away. For if I go not away, the Comforter will not come to you; but if I may go, I will send Him to you.
John 17:11
And I am no longer in the world, and they are in the world, and I come to thee. Holy Father, keep them through my name whom thou hast given unto me, in order that they may be one, as we are.
Acts 1:9
And having spoken these words, they looking, He was taken up, and a cloud received Him from their eyes.
Acts 3:21
whom it behooves heaven indeed to receive until the times of the restitution of all things which God spoke through the mouth of all his prophets from the beginning.

And

Acts 13:2
And they ministering to the Lord, and fasting, the Holy Spirit said, Now separate unto me Barnabas and Saul for the work to which I have called them.
Acts 14:23
And electing elders for them in every church, praying with fasting, they commended them to the Lord, on whom they had believed.
1 Corinthians 7:5
Do not defraud one another, unless it may be with consent for a time, that you may give attention to prayer, and again come together, in order that Satan may not tempt you on account of your incontinency.
2 Corinthians 6:5
in stripes, in prisons, in tumults, in labors, in vigils, in fastings;
2 Corinthians 11:27
in labor and in toil, in vigils often, in hunger and in thirst, in fastings often, in cold and in nakedness.