The word "Eikha" in the haftara connects the chapter to Megillat Eikha, which is read on Tisha B'Av. Was Eikha written with the purpose of convincing people to do Teshuva, or was it written as a book of lamentations, with the purpose of lamenting the destruction? A similar question can be posed regarding the haftara - is it focused on mourning, or reproach?