The first four chapters of Lamentations are each built as an acrostic, marching through the twenty-two letters of the Hebrew alphabet in order, one letter opening each verse or group of verses, a formal device that runs directly against the emotional chaos the poems describe. Chapter five keeps the number twenty-two, matching the alphabet's length exactly, but drops the acrostic device itself: no verse is keyed to a specific letter. Scholars have read this break in different ways, some as a sign of formal exhaustion after four sustained acrostics, others as a deliberate loosening that matches the chapter's shift from structured lament into more direct, unpatterned appeal, the poem's form giving way just as the community's composure does.
The chapter's afterlife in Jewish liturgy preserves a related discomfort with its ending. Lamentations as a whole is read on Tisha B'Av, the fast commemorating the destruction of both Jerusalem Temples, and chapter five's final verse, "for thou hast utterly rejected us; thou art very wroth against us," is widely felt to be too bleak a note on which to close a public reading. Long-standing custom in many communities repeats verse twenty-one, the plea for renewal, immediately after verse twenty-two is read, so that the passage as heard aloud ends on request rather than rejection. The custom does not alter the fixed biblical text; it changes only what the ear hears last, a small liturgical correction layered onto a poem that already found its own way from catalogue to plea.