In Lamentations 1:2 the image of Jerusalem as a widow continues. The expression weep[ing] in the night
accentuates the intensity of her mourning and her loneliness. Her weeping at night-time does not exclude weeping at daytime (see Lamentations 2:18), which suggests that daytime alone was insufficient to express her grief. It was a continuous grief. The description of the tears on her cheeks
also serves to indicate the continuity and intensity of her grief. Her grief stays with her because she has no apparent hope of consolation. The imagery in the rest of the verse gives the reason for this grief.
Weeping naturally accompanies heart-felt lament. Examples include Hagar’s sorrow (Genesis 21:16), and the nation's repentance after the exile (Nehemiah 8:9). For more examples, see Psalm 1:6–150:6, Psalm 39:12, Psalm 42:3, Psalm 56:8.1
2 Elle pleure durant la nuit, et ses joues sont couvertes de larmes; De tous ceux qui l'aimaient nul ne la console; Tous ses amis lui sont devenus infidèles, Ils sont devenus ses ennemis.