On your walls, O Jerusalem, I have set watchmen; all the day and all the night they shall never be silent. You who put the LORD in remembrance, take no rest,
Two things are here promised to Jerusalem: - I. Plenty of the means of grace - abundance of good preaching and good praying (Isa 62:6, Isa 62:7), and this shows the method God takes when he designs mercy for a people; he first brings them to their duty and pours out a spirit of prayer upon them, and then brings salvation to them. Provision is made, 1.
Commenting on Isaiah 62:6-9
I have set watchmen upon thy walls, O Jerusalem,.... Not angels, as Jarchi; nor kings, as Kimchi; nor princes and civil magistrates, as others; nor the mourners in Zion, as Aben Ezra; but ministers of the Gospel; as the prophets of the Old Testament are called watch men, Isa 21:11, so ministers of the New, Isa 52:8 who are to watch in all things over...
I--Isaiah speaking in the person of the Messiah. watchmen upon . . . walls--image from the watches set upon a city's wall to look out for the approach of a messenger with good tidings (Isa 52:7-8); the good tidings of the return of the Jewish exiles from Babylon, prefiguring the return from the present dispersion (compare Isa 21:6-11; Isa 56:10; Eze 3:17; Eze 33:7).