“O glorious throne,
Exalted from the beginning,
Shrine in our sanctuary!
Yahweh!
O hope of Israel!
All who forsake you
Shall be put to shame.
Those who turn away from you
Shall be recorded
In the underworld.
They have forsaken
The fountain of living water,
Yahweh!”
This seems to be two verses that were added to Jeremiah, talking about Yahweh. Yahweh was sitting on his glorious throne. He was the hope of Israel, so that he would shine in their sanctuary. Anyone who gave up on Yahweh would be put to shame and thus recorded in the underworld. They have forsaken the fountain of the living water that is Yahweh himself.