Lamentations 2:10; Lamentations 3:29

Lamentations 2:10

10 The elders of the daughter of Zion sit upon the ground, and keep silence: they have cast up dust upon their heads; they have girded themselves with sackcloth: the virgins of Jerusalem hang down their heads to the ground.

Lamentations 3:29

29 He putteth his mouth in the dust; if so be there may be hope.