Verily thou art a God that hidest thyself. Some commentators regard this as an exclamation made by Isaiah himself, who marvels at the unsearchable mystery of God's ways. But others, with better reason, take it for a continuation of the speech of the converted heathen, who marvel that God has so long hid himself from them and from the world at large, not manifesting his power, as he has now done in the person of Cyrus.
In this recent manifestation he has shown himself especially the God of Israel, and their Saviour.