Is the Whole Redemptive Plan of God Even Going Through?

This is a grief of the loss of an era in epoch 500 years. For more than that, there's been a tabernacle or a temple where God dwells with these people. The streets are empty. It looks like everything is wrecked. And Jeremiah feels every single level of that. If it wasn't Jeremiah personally who put pen to paper to write these poems, then whoever is writing these poems had access to everything he wrote.