Charles Ellicott Commentary Lamentations 3:18

"And I said, My strength is perished, and mine expectation from Jehovah." — Lamentations 3:18 (ASV)

I said, My strength. — The sorrow of the mourner comes to the very verge of despair. There was no help for him from his God; even that hope had left him. But, as the sequel shows, this despair was the beginning of a reaction. The very name of Jehovah (no longer Adonai) reminded him of the everlasting mercies.