Mark 2:20

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

Luke 17:22

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

Matthew 26:31

Then Jesus saith to them, This night will all of you fall away from me; for it is written, "I will smite the shepherd, and the sheep of the flock will be scattered."

John 3:29

He that hath the bride is the bridegroom; but the friend of the bridegroom, who standeth and heareth him, rejoiceth greatly because of the bridegrooms voice. This my joy then hath become full.

John 7:33-34

Jesus therefore said, Yet a little while I am with you, and then I go to him that sent me.

John 12:8

For the poor ye have always with you, but me ye have not always.

John 13:33

My children, yet a little while I am with you. Ye will seek me; and, as I said to the Jews, Whither I go, ye cannot come, so now I say to you.

John 16:7

But I tell you the truth; it is expedient for you that I depart. For if I do not depart, the Comforter will not come to you; but if I go, I will send him to you.

John 16:28

I came forth 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 in thy name which thou hast given me, that they may be one, even as we are.

John 17:13

But now I come to thee; and these things I speak in the world, that they may have my joy made full in them.

Acts 1:9

And having thus spoken, while they beheld, he was taken up; and a cloud received him out of their sight.

Acts 3:21

whom heaven indeed must receive until the times of a restoration of all things; of which times God spoke by the mouth of his holy prophets from the days of old.

Acts 13:2-3

And while they were ministering to the Lord, and fasting, the Holy Spirit said, Set apart for me Barnabas and Saul for the work to which I have called them.

Acts 14:23

And having appointed for them elders in every church, they prayed with fasting, and commended them to the Lord, in whom they believed.

1 Corinthians 7:5

Defraud not one another, except by agreement for a time, that ye may have a season for prayer; and be together again, that Satan may not tempt you through your incontinence.

2 Corinthians 6:5

in stripes, in imprisonments, in tumults, in labors, in watchings, in fastings;

2 Corinthians 11:2

For I am jealous over you with a godly jealousy; for I espoused you to one husband, to present you as a pure virgin to Christ;

2 Corinthians 11:27

by weariness and painfulness, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness.

Revelation 19:7

Let us rejoice and exult, and we will give to him the glory; for the marriage of the Lamb is come, and his wife hath made herself ready;

Revelation 21:9

And there came one of the seven angels who had the seven vials filled with the seven last plagues, and talked with me, saying, Come hither; I will show thee 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 saith to them, This night will all of you fall away from me; for it is written, "I will smite the shepherd, and the sheep of the flock will be scattered."
John 7:33
Jesus therefore said, Yet a little while I am with you, and then I go to him that sent me.
John 12:8
For the poor ye have always with you, but me ye have not always.
John 13:33
My children, yet a little while I am with you. Ye will seek me; and, as I said to the Jews, Whither I go, ye cannot come, so now I say to you.
John 16:7
But I tell you the truth; it is expedient for you that I depart. For if I do not depart, the Comforter will not come to you; but if I 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 in thy name which thou hast given me, that they may be one, even as we are.
Acts 1:9
And having thus spoken, while they beheld, he was taken up; and a cloud received him out of their sight.
Acts 3:21
whom heaven indeed must receive until the times of a restoration of all things; of which times God spoke by the mouth of his holy prophets from the days of old.

And

Acts 13:2
And while they were ministering to the Lord, and fasting, the Holy Spirit said, Set apart for me Barnabas and Saul for the work to which I have called them.
Acts 14:23
And having appointed for them elders in every church, they prayed with fasting, and commended them to the Lord, in whom they believed.
1 Corinthians 7:5
Defraud not one another, except by agreement for a time, that ye may have a season for prayer; and be together again, that Satan may not tempt you through your incontinence.
2 Corinthians 6:5
in stripes, in imprisonments, in tumults, in labors, in watchings, in fastings;
2 Corinthians 11:27
by weariness and painfulness, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness.