There is urgency in the prophet's cry for God's advent. Cosmic powers and principalities along with the warring nations of this world fight against God's ways. A divine reckoning is called for. The prophet wants deliverance—and deliverance now—from these enemies of God! And yet the ways of God in bringing about redemption are unexpected. God certainly does awesome deeds that we could not expect. God comes to us as a child, a baby born in obscurity. God comes to us in the crucified body of the Messiah. Indeed, there is no God besides this God whose power is made perfect in weakness and who overcomes the forces of evil in this world with the soulforce of love.
Isaiah 64:1-4 (NRSV)
1 O that you would tear open the heavens and come down, so that the mountains would quake at your presence—
2 as when fire kindles brushwood and the fire causes water to boil—to make your name known to your adversaries, so that the nations might tremble at your presence!
3 When you did awesome deeds that we did not expect, you came down, the mountains quaked at your presence.
4 From ages past no one has heard, no ear has perceived, no eye has seen any God besides you, who works for those who wait for him.