As it was taught in a baraita: Rabbi Eliezer says: The night consists of three watches, and over each and every watch, the Holy One, Blessed be He, sits and roars like a lion in pain over the destruction of the Temple. This imagery is derived from a reference in the Bible, as it is stated: “The Lord roars [yishag] from on high, from His holy dwelling He makes His voice heard. He roars mightily [shaog yishag] over His dwelling place berachos 3a