Formal agreement sworn before the gods. In the Neo-Assyrian era, it could be a treaty agreed between the king of Assyria and his vassals or an oath taken by the people of the country. Most ades are unilateral commitments to the Assyrian king. However, some are international treaties made on an equal footing, such as the agreement entered into by Esarhaddon and Urtaku, king of Elam in 674 BCE.