This haftarah opens addressing Zion as a woman who has been barren, told to sing anyway, since her offspring will eventually outnumber those of a woman who never experienced that particular grief, and instructed to enlarge the space of her tent, since she will need to spread out further than she currently expects.
Isaiah reassures that the shame of Zion's youth and the disgrace of her widowhood will be forgotten, and that though God had hidden His face from her briefly in a moment of anger, everlasting kindness will now be shown with compassion. The passage makes the same explicit comparison to Noah's flood already met earlier in this account's coverage of the haftarah for Parashah Noach, that just as God swore the waters of Noah would never again flood the earth, He now swears not to be angry with this people again.
The haftarah closes with the assurance that though mountains may depart and hills be removed, God's kindness will not depart and His covenant of peace will not be removed, closing on the same note of unbreakable permanence that has run through the consolation sequence since its own opening reading.
The instruction to enlarge the tent's space before the promised growth has even arrived asks the listener to prepare in faith for an abundance not yet visible, a practical instruction folded into an otherwise purely emotional promise of restored dignity.