What does Isaias Chapter 42 say, and which statements belong to its speaker?

Isaias 42 presents the upheld, chosen servant endowed with the Lord's spirit to bring judgment to Gentiles. The edition identifies him as Christ according to humanity. He does not cry, respect persons or make his voice heard abroad; bruised reed and smoking flax are spared. He brings judgment to truth and is neither sad nor troublesome until judgment is set in earth and islands wait for law.

The creator of heaven and earth, giver of breath and spirit, calls the servant in justice, takes his hand and preserves him as covenant of the people and light of Gentiles. Blind eyes open and prisoners leave prison and darkness. The Lord retains his glory and praise from graven things and declares new things before they appear. Underground dungeons and a general guarantee of every new revelation's veracity are not added.

A new song is called from earth's ends, sea and islands. Desert cities, Cedar and Petra receive calls to praise; the edition says Petra gives its name to Arabia Petraea, without calling it the capital. The Lord advances as a mighty warrior, crying and prevailing. After patient silence he speaks like a woman in labor, destroys, lays waste mountains and hills, withers grass, turns rivers into islands and dries pools. He leads the blind along unfamiliar paths, makes darkness light and crooked things straight, and does not forsake them. Trusters in molten images are confounded.

Deaf and blind are summoned to attend. Questions concern the blind servant, the one sent messengers and the one sold. Seeing many things and open ears are contrasted with failure to observe and hear. The Lord wishes to sanctify and magnify the law, but the people are robbed, wasted and imprisoned with no deliverer or demand to restore. The passage says the Lord gave Jacob and Israel to robbers because of sin and refusal to walk his ways or hear his law. Fury, battle and fire are poured out without understanding. The chapter's rebuke is retained without inventing witnessed miracles or extending it into a blanket claim about Jewish people.