Midrasch zu Ejchah 3:4

“He wore away my flesh and my skin, broke my bones” (Lamentations 3:4).
“He wore away my flesh” – this is the community. “And my skin” – this is the Sanhedrin; just as the skin protects the flesh, so the Sanhedrin protects the community. “Broke my bones [atzmotai]” – my mighty ones [itzumai], people who were like mighty warriors [benei haatzumim].
“He built against me and surrounded me with gall and hardship” (Lamentations 3:5).
“He built against me and surrounded me with gall [rosh]” – this is Nebuchadnezzar, as it is written in his regard: “You are the head [reisha] of gold” (Daniel 2:38). “And hardship” – this is Nevuzaradan. Alternatively: “Gall” – this is Vespasian; “and hardship” – this is Trajan.
“He settled me in darkness, like those long dead” (Lamentations 3:6).
“He settled me in darkness, like those long dead” – Rabbi Shmuel said: Four are considered as dead: A blind person, as it is stated: “He settled me in darkness, like those long dead.” A leper, as it is stated: “Let her not be like a corpse” (Numbers 12:12).¹⁰Aaron said this in reference to Miriam, who was afflicted with leprosy, when he asked Moses to pray on her behalf. One who does not have children, as it is written regarding Rachel: “Give me children, and if not, I am dead” (Genesis 30:1). And one who has become impoverished, as it is stated: “All the men [seeking your life] have died” (Exodus 4:19). Were they, in fact, dead? Rather, they had become impoverished.¹¹The Sages identified the men seeking Moses’s life as Datan and Aviram (see Avoda Zara 5a). They were not yet dead, as they later participated in Koraḥ’s uprising (see Numbers 16:1–2).