isaiah 42:16 And I will bring the blind by a way that they knew not; I will lead them in paths that they have not known: I will make darkness light before them, and crooked things straight. These things will I do unto them, and not forsake them. - Free Bible Online

      16. blind--God's people, Israel, in captivity, needing a guide. In the ulterior sense the New Testament Church, which was about to be led and enlightened by the Son of God as its leader and shepherd in the wilderness of the Roman empire, until it should reach a city of habitation. "A way . . . they knew not," refers to the various means ployed by Providence for the establishment of the Church in the world, such as would never have occurred to the mind of mere man. "Blind," they are called, as not having heretofore seen God's ways in ordering His Church.
      make darkness light, &c.--implies that the glorious issue would only be known by the event itself [VITRINGA]. The same holds good of the individual believer (Isa 30:21; Ps 107:7; compare Ho 2:6, 14; Eph 5:8; Heb 13:5).

JFB.