33:20. Look upon Sion the city of our solemnity: thy eyes shall see Jerusalem, a rich habitation, a tabernacle that cannot be removed: neither shall the nails thereof be taken away for ever, neither shall any of the cords thereof be broken.
33:21. Because only there our Lord is magnificent: a place of rivers, very broad and spacious streams: no ship with oars shall pass by it, neither shall the great galley pass through it.
Of rivers… He speaks of the rivers of endless joys that flow from the throne of God to water the heavenly Jerusalem, where no enemy's ship can come, etc.
33:22. For the Lord is our judge, the Lord is our lawgiver, the Lord is our king: he will save us.
33:23. Thy tacklings are loosed, and they shall be of no strength: thy mast shall be in such condition, that thou shalt not be able to spread the flag. Then shall the spoils of much prey be divided: the lame shall take the spoil.
Thy tacklings… He speaks of the enemies of the church, under the allegory of a ship that is disabled.
33:24. Neither shall he that is near, say: I am feeble. The people that dwell therein, shall have their iniquity taken away from them.
Isaias Chapter 34
The general judgment of the wicked.
34:1. Come near, ye Gentiles, and hear, and hearken, ye people: let the earth hear, and all that is therein, the world, and every thing that cometh forth of it.