Yahweh speaks about the desolate land (Jer 4:27-4:28)

“Thus says Yahweh.

‘The whole land shall be a desolation.

Yet I will not make a full end.

Because of this

The earth shall mourn.

The heavens above shall

Grow black.

I have spoken.

I have purposed.

I have not relented.

I will not turn back.’”

Yahweh, via Jeremiah, says that the whole land will be desolate, but he is not done. The earth will mourn, while the heavens will turn black. He has spoken. He has purposed this because he will not relent or turn back. The course is set.