What does Isaiah 1:24 mean?
The beginning of the case against Israel's sin and faithlessness have been made by Isaiah (Isaiah 1:4) and by the Lord Himself (Isaiah 1:2). There is more to come, but the Lord has rendered a verdict. He will act against Jerusalem and Judah, making them faithful once more.In response to the current state of Judah, the Lord declares His plan and resolution. He identifies His enemies and foes as those in Israel who are unfaithful and corrupt, those who are leading the people astray.
Isaiah uses two names for God in this verse: the Lord of hosts and the Mighty One of Israel. God is the commander of "hosts," tens of thousands of warrior angels ready to bring destruction upon His command. Both names are meant to show that God is powerful enough to bring order back to His people by removing those among them who have made themselves His enemy.