This document provides commentary on Isaiah 52 from four scholars: Barnes, Clarke, Gill, and Henry. The main points are:
1) Barnes and Gill discuss the passage as calling for Jerusalem/Zion/the church to awake from mourning and put on strength and beautiful garments in preparation for their future deliverance and restoration.
2) Clarke notes that some see the passage referring to Christians and Turks.
3) Gill provides extensive commentary arguing the passage refers prophetically to the spiritual Jerusalem/church in the latter days being purified and no longer facing persecution from gentiles/papists.