Amos 2, Judah

4. After God speaks of the sins of other nations, He turns to the sins of His own people.

The other nations are judged for the way they treated Israel and Judah--or one another. (Moab is condemned for how it treated Edom.)

Judah is not judged for how it treated other nations, but for disobeying God's law: "they rejected the law of the LORD and have not kept His statutes."

God describes Judah as being deceived, under some kind of delusion, one that their ancestors suffered from as well: "Their lies also have led them astray, those after which their fathers walked."

5. Then the LORD speaks the same doom on Judah as on the other nations: "I will send fire upon Judah, and it will consume the citadels of Jerusalem."

It sounds as if God does not treat Judah with any favoritism. They are His chosen people, but that does not mean that He will not judge them in the same way that He judges the nations.