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13 Gird yourselves [with sackcloth], and lament, ye priests; wail, ye ministers of the altar; come, lie all night in sackcloth, ye ministers of my God: for the meal-offering and the drink-offering are withholden from the house of your God.
'Weeping with a loud voice' signifies the ultimate of grief.
(References: Arcana Coelestia 2689)