“Because of all this we make a firm agreement in writing. On that sealed document are inscribed the names of our officials, our Levites, and our priests.”
Apparently Nehemiah came up with the idea of a new written covenant, which is nothing more than a renewal of the old covenant, after this great prayer of Ezra. He wanted all the officials, Levites, and priests to sign it or put their seal on it. Actually King Josiah (640-609 BCE), before the Exile, had a renewal of the covenant but it was only an oral one, not written. We shall see how this written covenant works out.