The offering is identical to the one before it and the one after, and that sameness is the meaning. Each leader brings the same oxen, the same rams, the same lambs of the first year, because giving up the best is not one man's private idea. The whole people has agreed to live inside one form. The rite binds them because it does not change from tribe to tribe.
And still each man is named, and each brings his own animals with his own hands. No man is exempted. His neighbour's gift does not cover him. Belonging to something larger does not dissolve a person into the crowd; it asks the same costly act of him as of everyone else. You take your turn at the altar, by name, and pay what the others paid.