'Mourning' in the Bible

O daughter of my people [says Jeremiah],Clothe yourself in sackcloth and wallow in ashes;Mourn [aloud] as for an only son,A most bitter cry [of sorrow and regret],For suddenly the destroyer will come upon us [on both prophet and people].

For the brokenness of the daughter of my people I (Jeremiah) am broken;I mourn, anxiety has gripped me.

Thus says the Lord of hosts,“Consider and call for the mourning women to come;Send for the wailing women to come.

“Judah mournsAnd her gates languish;Her people sit on the ground in mourning clothesAnd the cry of Jerusalem has gone up.

For thus says the Lord, “Do not enter a house of mourning, nor go to lament (express grief) or bemoan [the dead], for I have taken My peace away from this people,” says the Lord, “even My lovingkindness and compassion.

“Then the virgin will rejoice in the dance,And the young men and old, together,For I will turn their mourning into joyAnd will comfort them and make them rejoice after their sorrow.

“Baldness [as a sign of mourning] will come on Gaza;Ashkelon will be cut off and ruined.O remnant of their valley,How long will you gash yourselves [as a sign of mourning]?

“Therefore I will wail over Moab,And I will cry out for all Moab.I will sigh and mourn over the men of Kir-heres (Kir-hareseth).

For every head is [shaven] bald and every beard cut off; there are cuts (slashes) on all the hands and sackcloth on the loins [all expressions of mourning].