Jeremiah was talking to Jerusalem here. But anyway, Jeremiah 13:22, 23 says,
”22 And if you ask yourself,
“Why has this happened to me?”
It is because of the magnitude of your iniquity
that your skirts have been stripped off
and your body has been exposed.
23 Can the Ethiopian change his skin,
or the leopard his spots?
Neither are you able to do good—
you who are accustomed to doing evil.”
And verse 27 says,
”27 Your adulteries and lustful neighings,
your shameless prostitution
on the hills and in the fields—
I have seen your detestable acts..”.