This verse is very similar to 2.28.

For your gods … O Judah is translated by Die Bibel im heutigen Deutsch as “In Judah each city has its own god….” Good News Translation makes Judah the subject: “The people of Judah have as many gods as they have cities.” Translators can also say something like “The people of Judah worship as many gods as there are cities” or “The gods the people worship are as many as their cities.”

An altar is an elevated place, possibly a mound or platform, where religious rites are performed, particularly sacrifices. Translators can have “table [or, platform] of sacrificing.”

Altars you have set up to shame, altars to burn incense to Baal is somewhat repetitious, and the first part is omitted by the Septuagint. Since it is an authentic part of the Hebrew text, Hebrew Old Testament Text Project proposes that it can be retained. Traduction œcuménique de la Bible does retain it, but with a footnote concerning its omission from the Septuagint. Die Bibel im heutigen Deutsch renders “altars on which you burn incense to the disgraceful Baal,” and Good News Translation has “altars for sacrifices to that disgusting god Baal.” But in some languages it is clearer to say “altars for that shameful [or, disgraceful] object they worship, that is, Baal.” Both Traduction œcuménique de la Bible and La Bible Pléiade provide a footnote with a reference to 3.24, where Baal is called “the shameful thing.”

Quoted with permission from Newman, Barclay M. and Stine, Philip C. A Handbook on Jeremiah. (UBS Helps for Translators). New York: UBS, 2003. For this and other handbooks for translators see here .