'Mourning' in the Bible

and to speak to the priests assigned to the Temple of the LORD of the Heavenly Armies along with the prophets, asking, "Am I to go about mourning, denying myself throughout the fifth month, as I have these many years?"

"Talk to everyone in the land, as well as to the priests. Ask them, "When you were fasting and mourning during the fifth and seventh months for the past seventy years, were you really fasting for me?

Then they will mourn for him, as for an only son. They will grieve bitterly for him, as for a firstborn son. At that time, Jerusalem will mourn deeply, like the mourning about Hadad-rimmon that took place in the plain of Megiddo.