The Joyous Song of the Returning Exiles. The exiles on their return exhort one another to publish the salvation which Yahweh has brought, how, repeating the wonders of the Exodus, He miraculously provides them with water as they pass through the desert to Jerusalem.
Isaiah 48:20. from: out of the midst of, not fearing the Chaldeans, but escaping so as not to be involved in their ruin.
Isaiah 48:22. An insertion from Isaiah 57:21.