John 16:20-22

Truly, truly, I say unto you, that you will weep and mourn, and the world will rejoice; you will be sorrowful, but your sorrow will be turned into joy.

Romans 15:9-12

and that the Gentiles might glorify God for his mercy; as has been written, Therefore I will confess thee among the Gentiles, and in thy name sing praises.

Revelation 11:3-15

And I will give to my two witnesses, and they shall prophesy a thousand two hundred and sixty days, clothed in sackcloth.

Treasury of Scripture Knowledge

Summary

Rejoice ye with Jerusalem, and be glad with her, all ye that love her: rejoice for joy with her, all ye that mourn for her:

Rejoice ye

General references

Bible References

Rejoice ye

Romans 15:9
and that the Gentiles might glorify God for his mercy; as has been written, Therefore I will confess thee among the Gentiles, and in thy name sing praises.

That mourn

John 16:20
Truly, truly, I say unto you, that you will weep and mourn, and the world will rejoice; you will be sorrowful, but your sorrow will be turned into joy.
Revelation 11:3
And I will give to my two witnesses, and they shall prophesy a thousand two hundred and sixty days, clothed in sackcloth.

General references

Matthew 5:4
Blessed are the meek, because they shall inherit the earth.
Romans 9:2
that there is great sorrow to me and incessant grief to my heart.