Zechariah 12:11

In that day there shall be a great mourning in Jerusalem, like the mourning of [the city of] Hadadrimmon in the Valley of Megiddo [over beloved King Josiah].

2 Kings 23:29

In his days Pharaoh Neco (Necho) king of Egypt went up to the king of Assyria to the river Euphrates [to help him fight Nabopolassar the king of Babylon]. King Josiah went out to meet him, but Pharaoh killed Josiah at Megiddo when he saw him.

2 Chronicles 35:24

So his servants took him out of the chariot and carried him in the second chariot which he had, and brought him to Jerusalem where he died and was buried in the tombs of his fathers. All Judah and Jerusalem mourned for Josiah.

Treasury of Scripture Knowledge

Summary

In that day shall there be a great mourning in Jerusalem, as the mourning of Hadadrimmon in the valley of Megiddon.

General references

Bible References

As

2 Kings 23:29
In his days Pharaoh Neco (Necho) king of Egypt went up to the king of Assyria to the river Euphrates [to help him fight Nabopolassar the king of Babylon]. King Josiah went out to meet him, but Pharaoh killed Josiah at Megiddo when he saw him.
2 Chronicles 35:24
So his servants took him out of the chariot and carried him in the second chariot which he had, and brought him to Jerusalem where he died and was buried in the tombs of his fathers. All Judah and Jerusalem mourned for Josiah.

General references

Matthew 5:4
“Blessed [forgiven, refreshed by God’s grace] are those who mourn [over their sins and repent], for they will be comforted [when the burden of sin is lifted].