15 I will lay waste mountains and hills, and dry up all their vegetation; I will turn the rivers into islands,[1] and dry up the pools. 16 And I will lead the blind in a way that they do not know, in paths that they have not known I will guide them. I will turn the darkness before them into light, the rough places into level ground. These are the things I do, and I do not forsake them. 17 They are turned back and utterly put to shame, who trust in carved idols, who say to metal images, "You are our gods."
Matthew Henry's Commentary on Isaiah 42:15-17
Commentary on Isaiah 42:13-17
(Read Isaiah 42:13-17)
The Lord will appear in his power and glory. He shall cry, in the preaching of his word. He shall cry aloud in the gospel woes, which must be preached with gospel blessings, to awaken a sleeping world. He shall conquer by the power of his Spirit. And those that contradict and blaspheme his gospel, he shall put to silence and shame; and that which hinders its progress shall be taken out of the way. To those who by nature were blind, God will show the way to life and happiness by Jesus Christ. They are weak in knowledge, but He will make darkness light. They are weak in duty, but their way shall be plain. Those whom God brings into the right way, he will guide in it. This passage is a prophecy, and is also applicable to every believer; for the Lord will never leave nor forsake them.