The voice of your watchmen—they lift up their voice; together they sing for joy; for eye to eye they see the return of the LORD to Zion.
The removal of the Jews from Babylon to their own land again is here spoken of both as a mercy and as a duty; and the application of Isa 52:7 to the preaching of the gospel (by the apostle, Rom 10:15) plainly intimates that that deliverance was a type and figure of the redemption of mankind by Jesus Christ, to which what is here said...
Commenting on Isaiah 52:7-12
The watchmen shall lift up the voice,.... Not the Levites in the temple, nor the prophets of the Old Testament; rather the evangelists and apostles of Christ; best of all Gospel ministers in the latter day, so called in allusion to watch men on the walls of cities looking out, and giving notice of approaching danger; see Isa 62:6.
watchmen--set on towers separated by intervals to give the earliest notice of the approach of any messenger with tidings (compare Isa 21:6-8). The Hebrew is more forcible than English Version, "The voice of thy watchmen" (exclamatory as in Sol 2:8). "They lift up their voice!