The prophet, by enumerating his own severe trials, vv. 1-20, and showing his trust in God, Lam 3:21, encourages his people to the like resignation and trust in the Divine and never-failing mercy, Lam 3:22-27. He vindicates the goodness of God in all his dispensations, and the unreasonableness of murmuring under them, Lam 3:28-39. He recommends self-examination and repentance; and then, from their experience of former deliverances from God, encourages them to look for pardon for their sins, and retribution to their enemies, vv. 40-66.