Isaiah 49-57 situates these prophecies in the first years after the blockage of Jerusalem in 701. In this way they are ascribed to Isaiah of Jerusalem in keeping with the witness of Second Temple Judaism. The prophecies centre around Yahweh's invitation and encouragement to go out and retake the land after the Assyrian invasion. The major event in the background is the retrieval of the silver temple vessels from the borders of Egypt by the Arm of hte Lord.