“Thus says Yahweh.
‘If those who did not deserve
To drink the cup
Still have to drink it,
Shall you be the one
To go unpunished?
You shall not
Go unpunished.
You must drink it.’”
Yahweh, via Jeremiah, said that the Edomites still had to drink from the cup of Yahweh’s wrath. Even if they did not deserve it, they would not go unpunished. Here Yahweh seems to indicate that the Edomites did not deserve the punishment that they were getting. However, they could not go unpunished. Thus they had to drink from this cup of wrath.
Eugene Finnegan Bible Project 