link with the idea that the Israelites had to live in bivouacs on the way from Egypt to the promised land. Maybe this is the point about the comment that the festival had not been celebrated this way before (Ezra 3 recorded a celebration). This is the moment when Sukkot gains its link with God’s bringing people out of Egypt. That development in turn would fit with the specific reference to people having come back from the captivity. That new exodus was itself a reenactment of the first exodus. In