You have broken down all his hedges; you have brought his strongholds to ruin.
Read Chapter 89
Augustine of Hippo
33. These promises, so sure, so firm, so open, so unquestioned, were made concerning Christ. For although some are mysteriously veiled, yet some are so clear, that all that is obscure is easily revealed by them. Such being the case, see what follows: "But Thou hast approved and brought to nothing and forsaken Thine Anointed" (ver. 38). "Thou hast overthrown the testament of Thy servant, and profaned His holiness on the ground" (ver. 39). "Thou hast broken down all His hedges, and made His strongholds a terror" (ver. 40). ...How is this? Thou hast promised all those things: and Thou hast brought to pass their reverse. Where are now the promises which but a little before filled us with delight? which we so joyfully applauded, which we so fearlessly made our boast of? It is as if one promised, and another destroyed. And this is the mystery: for the words are not "another," but "Thou," Thou who didst promise, who didst even swear in condescension to human doubt, Thou hast promised this, an...
Fear. All his forts can afford no refuge. The country is like an abandoned vineyard. The Assyrians and Chaldeans have ruined it, and the neighbouring nations of Samaria and Edom take possession of it. (Calmet)
Thou leadest on their armies, and renderest our efforts useless. (Menochius)
This conduct of God proceeded from mercy. This severe chastisement awakened his people, who after the captivity were more tractable. (Chaldean) (Berthier) (Calmet)