Even now He's pleading for them to return to Him. Warning them of the sure result of their course. Calling them back...
"How can I give thee up...?"
He's tried again and again, but they would not hearken. Now He will cast them off. And not even Jeremiah's prayers or interceding for them can change it. "Seest thou not how they sacrifice unto other gods, and worship them that they may provoke me to anger? Do they provoke me to anger? ... Do they not provoke themselves to the confusion of their own faces?"*
They've disobeyed, ignored, and forsaken God for many years. Trading Him instead for illusions of gods and their own evil pleasure. And now, they have a screwed picture of God. They're confused.
They don't know God, they don't know themselves, and they don't know their other gods.
Confusion is the sure result of trading the true and living God for life-less gods and selfish pleasure.
Let's learn from them.
*See Jeremiah 7:17-19.