“And I will spread my net on him, and he will be taken in my snare, and I will bring him to Babylon, and will plead with him there for his trespass that he has trespassed against me.”
Zedekiah's problem was that, because he had flagrantly disobeyed Yahweh, it was Yahweh who was against him. Thus as a hunter spreads his net and snares his prey, so will Yahweh trap Zedekiah, with the result that he will be taken captive to Babylon. Note that it is Yahweh Who snares him and Yahweh Who takes him to Babylon. Nebuchadnezzar is but the instrument. And there Yahweh will have personal dealings with Zedekiah so as to win him over. The mercy of Yahweh never ceases.