27 Heb “this people and Jerusalem.”
28 Heb “A scorching wind from the hilltops in the desert toward …” The allusion is, of course, to the destructive forces of the enemy armies of Babylon compared above in 4:7 to a destructive lion and here to the destructive desert winds of the Near Eastern sirocco.
29 Heb “daughter of my people.” The term “daughter of” is appositional to “my people” and is supplied in the translation as a term of sympathy and endearment. Compare the common expression “daughter of Zion.”
30 Heb “not for winnowing and not for cleansing.” The words “It will not be a gentle breeze” are not in the text but are implicit in the connection. They are supplied in the translation here for clarification.

In other versions

ESVEnglish Standard Version

At that time it will be said to this people and to Jerusalem, “A hot wind from the bare heights in the desert toward the daughter of my people, not to winnow or cleanse,

NIVNew International Version (2011)

At that time this people and Jerusalem will be told, “A scorching wind from the barren heights in the desert blows toward my people, but not to winnow or cleanse;

CSBChristian Standard Bible

“At that time it will be said to this people and to Jerusalem, ‘A searing wind blows from the barren heights in the wilderness on the way to my dear people. It comes not to winnow or to sift;

NLTNew Living Translation

The time is coming when the Lord will say

to the people of Jerusalem,

“My dear people, a burning wind is blowing in from the desert,

and it’s not a gentle breeze useful for winnowing grain.

LEBThe Lexham English Bible

At that time it will be said to this people and to Jerusalem,

“A hot wind from the barren heights in the desert,

in the direction of the daughter of my people,

not to winnow and not to cleanse,

KJV 1900King James Version

At that time shall it be said to this people and to Jerusalem,

A dry wind of the high places in the wilderness toward the daughter of my people,

Not to fan, nor to cleanse,

Public Domain