Jeremiah 22:6

6 For this is what the LORD says about the palace of the king of Judah: “Though you are like Gilead to me, like the summit of Lebanon, I will surely make you like a wasteland, like towns not inhabited.

Read Jeremiah 22:6 Using Other Translations

For thus saith the LORD unto the king's house of Judah; Thou art Gilead unto me, and the head of Lebanon: yet surely I will make thee a wilderness, and cities which are not inhabited.
For thus says the LORD concerning the house of the king of Judah: "'You are like Gilead to me, like the summit of Lebanon, yet surely I will make you a desert, an uninhabited city.
Now this is what the LORD says concerning Judah’s royal palace: “I love you as much as fruitful Gilead and the green forests of Lebanon. But I will turn you into a desert, with no one living within your walls.

What does Jeremiah 22:6 mean?

John Gill's Exposition of the Bible
Jeremiah 22:6

For thus saith the Lord unto the king's house of Judah
That is, to the family of the king of Judah; though it may be rendered, "concerning the house of the king of Judah" F26; and so refer to his palace as before: thou [art] Gilead unto me, [and] the head of Lebanon;
or, though like to Gilead (which was a very fruitful country) for wealth, riches, and all kind of valuable things; and like to the top of Mount Lebanon F1, being set with tall cedars, for stateliness. So the Targum is,

``although thou art beloved before me more than the sanctuary, which is high upon the top of the mountains:''
or thou shall be as Gilead, and Mount Lebanon, which belonged to the ten tribes of Israel, and are put for the whole kingdom of Israel, which was wasted by the king of Assyria; and in like condition should the royal palace at Jerusalem be, notwithstanding all its riches and grandeur, and so the city and temple likewise; as follows: [yet] surely I will make thee a wilderness, [and] cities [which] are
not inhabited;
though as fruitful as Gilead, yet shall become like a barren desert; and though full of children, courtiers, princes, and nobles, yet shall be like cities quite depopulated: or, "if I do not make thee" F2 it is in the form of an oath, as Kimchi and Ben Melech observe; and to be supplied thus, if I do not do as I have said, let me never be believed; let me be reckoned a liar, or not thought to be God, and the like. It shows the certain accomplishment of these things.
FOOTNOTES:

F26 (Klm tyb le) "de domo regis", Cocceius, Junius & Tremellius, Piscator.
F1 (Nwnblh var yl hta delg) "velut Gilead, ut caput Libani", Junius & Tremellius.
F2 (Ktyva al Ma) "si non posuero te", Vatablus, Pagninus, Montanus, Schmidt.
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