Matthew 5:4

Happy are they that mourn; for they shall be comforted.

John 16:20-22

Verily, verily I say unto you, Ye will weep and lament; but the world will rejoice: ye will be sorrowful; but your sorrow shall be turned into joy.

2 Corinthians 7:8-11

For I do not repent that I grieved you by the letter, though I did repent: (for I see that letter grieved you, though but for a season.)

Galatians 6:9

But let us not be weary of well doing; for in due season we shall reap, if we faint not.

Treasury of Scripture Knowledge

Summary

They that sow in tears shall reap in joy.

General references

Bible References

That sow

Matthew 5:4
Happy are they that mourn; for they shall be comforted.
John 16:20
Verily, verily I say unto you, Ye will weep and lament; but the world will rejoice: ye will be sorrowful; but your sorrow shall be turned into joy.
2 Corinthians 7:8
For I do not repent that I grieved you by the letter, though I did repent: (for I see that letter grieved you, though but for a season.)

General references

Matthew 5:4
Happy are they that mourn; for they shall be comforted.