What does Isaias Chapter 29 say, and which statements belong to its speaker?

Isaias 29 addresses Ariel, the city David took, with years added and solemnities ended. The edition explains lion of God and Jerusalem. Trenches, ramparts, siege, sorrow and low speech like the python precede opponents as dust and passing ashes. Sudden thunder, earthquake, tempest and fire accompany nations like a night dream: hungry and thirsty dreamers wake still empty.

Staggering without wine and deep sleep obscure vision. A learned person cannot read a sealed book; another knows no letters. The book is not said to have been unsealed between them. Lips glorify while hearts remain distant and fear follows human doctrines. Wonderful intervention hides prudent understanding. Those concealing counsel deny being seen; clay denying its maker or understanding exposes the perversity.

Libanus becomes charmel, explained as fruitful field, and charmel is esteemed forest. Deaf hear and blind see; meek and poor rejoice. Prevailing oppressor, scorner and watchers for iniquity are cut off, including those who make men sin by word and supplant reprovers at the gate. The Lord who redeemed Abraham tells Jacob he will not be ashamed. Children sanctify the name, not a specified sanctuary; erring spirits understand and murmurers learn law.