Shared ground
Isaiah 33:23–24 ends the chapter with a sharp reversal: the threatening power is pictured as helpless (like a ship with useless rigging), and what it had seized becomes spoil shared out broadly (including “the lame”). The scene then shifts to the restored community: sickness no longer defines life there, and the people’s wrongdoing is removed. These are explicit claims of the text, presented as the final snapshot after earlier promises of security in Zion (Isaiah 33:23–24).
Where interpretation differs
Who is being addressed as “your.” Some read “your rigging is loosed” as aimed at the enemy (the attacker is the disabled ship). Others take it as addressed to Zion/Jerusalem, with the sense that Zion’s prior weakness is being described right before the turnaround in which spoil is gained.
How to relate “no one says, ‘I am sick’” to “iniquity forgiven.” Many read the pairing as a full picture of restoration: physical well-being and moral/spiritual cleansing belong together in the renewed community. Others read “sickness” more broadly as the misery of siege, oppression, or communal breakdown—so the line means the conditions that make people “sick” are gone, alongside guilt being lifted.
Why the disagreement exists
The pronouns and imagery are compressed: “your… they… their” can be tracked in more than one way, and the ship language is metaphorical enough that readers differ on whether it targets the enemy directly or describes Zion’s former condition. Also, the text places “sickness” and “forgiveness” side-by-side without explaining the causal link, leaving room to ask whether the connection is direct (healing as part of forgiveness) or thematic (total restoration stated in two complementary ways).
What this passage clearly contributes
The passage contributes a culminating picture of divine reversal: an aggressor’s power collapses; its gains are redistributed so completely that even the weak share in it; and the restored community is marked by the absence of the “I am sick” complaint and by forgiven wrongdoing. The text does not spell out a timeline or mechanism, but it presents wholeness (social, physical, and moral) as fitting together in the final outcome.