Matthew 5:4

"Blessed are the mourners, for they will be comforted.

2 Corinthians 7:10-11

For the sorrow that comes in accordance with the will of God results in repentance that leads to salvation and leaves no regrets, but the sorrow the world produces results in death.

Treasury of Scripture Knowledge

Summary

And it came to pass, while the ark abode in Kirjathjearim, that the time was long; for it was twenty years: and all the house of Israel lamented after the LORD.

Bible References

Lamented

Matthew 5:4
"Blessed are the mourners, for they will be comforted.
2 Corinthians 7:10
For the sorrow that comes in accordance with the will of God results in repentance that leads to salvation and leaves no regrets, but the sorrow the world produces results in death.