The second part of the Little Apocalypse (see study note on 24:1–27:13) describes praise for God’s judgment (25:1–5, 11–12) and salvation (25:6–9).
Isaiah here praises God for protecting the needy (see 12:1–6).
The banquet is a symbol of God’s providing richly for all those who will receive his gracious invitation (Rev 3:20–21; 19:9).
The new community of God’s people will respond in joy and faith. When the enemy is defeated, God’s people will be free forever.