Thus, the haftarah for Tishah Be-Av morning serves two functions.
One, that it shares with all other haftarot, is to express themes
relevant to that particular day's Torah reading. The other, unique to it,
is to elicit feelings and emotions, to help us be sad and thus mourn for
a set of events that have deeply and profoundly defined our lives as a
people for the last almost two thousand years.
16. (from Conclusion)
Schacter, J. J. (2011I). Haftarah of Tishah Be-Av morning: Themes of destruction and exile (pp. 709-719). In D. Z. Feldman, & S. W. Halpern (Eds.), From within the tent : the Haftarot = [Mi-tokh ha-ohel : ha-Hafṭarot] : essays on the weekly Haftarah reading from the rabbis & professors of Yeshiva University (pp. 709-719). Maggid Books.
*This is constructed from limited available data and may be imprecise.