Isa 62:1-12. Intercessory prayers for Zion’s restoration, accompanying God’s promises of it, as the appointed means of accomplishing it.
I - the prophet, as representative of all the praying people of God who love and intercede for Zion (compare Isa 62:6, Isa 62:7; Psa 102:13-17), or else Messiah (compare Isa 62:6). So Messiah is represented as unfainting in His efforts for His people (Isa 42:4; Isa 50:7).
righteousness thereof - not its own inherently, but imputed to it, for its restoration to God’s favor: hence “salvation” answers to it in the parallelism. “Judah” is to be “saved” through “the Lord our (Judah’s and the Church’s) righteousness” (Jer 23:6).
as brightness - properly the bright shining of the rising sun (Isa 60:19; Isa 4:5; 2Sa 23:4; Pro 4:18).