Isaiah 2:1-5 reads like hope. All nations gather to walk in God's ways of love and justice. Weapons are turned into tools for farming and cultivating the earth. War is no longer taught. The image is beautiful. This is what Advent is about: looking forward to when God will make all things right.
Rewind just a few verses and one sees that Isaiah's vision is born in a time where the opposite is true. The prophet (problematically) calls the city a whore. He states that, once a home of justice and righteousness, it is now a community filled murderers. Everyone is looking to make that extra buck. The orphans are abandoned. The widows are ignored. Everything is broken.