Then said I, Lord, how long? And he answered, Until the cities be wasted without inhabitant, and the houses without man, and the land be utterly desolate, Lord, how long - will this wretched condition of the nation being hardened to its destruction continue?
Until the cities be wasted without inhabitant (Isaiah 5:9) - fulfilled primarily at the Babylonian captivity, and more fully at the dispersion under the Roman Titus.