We have to create a dwelling place for God. The menorah gives us light from the pure olive oil. The table gives us a source for making a living. The altar a place to be with G_d. We are a walking Mishnah. We create in heart and essence in every moment. (paraphrased from Rabbi Gordon at Chabat.org). The bread, stacked on the shelves, would miraciously stay fresh for a week. Moses stuck to the program, and a dwelling place was created. This is the glue that would hold together a people.