Parliaments without knights and burgesses still met with the king. But it was understood that no extraordinary tax could be levied without the knights and burgesses present. Ordinary taxes could be arranged with individuals, estates, or communities. The lower clergy ceased to attend Parliament and instead considered taxes to pay to the king during their national church convocations, which were held at the same time as Parliament. For collection purposes, their diocesan synod was analogous to the county court. The higher clergy remained in Parliament because they were feudal vassals of the king. Edward's council was the highest tribunal. It comprised the Chancellor, Treasurer and other great officers of state, the justices of the three courts, the master or chief clerks of the Chancery, and certain selected prelates and barons. The council assisted the king in considering petitions. Most petitions to the King were private grievances of individuals, including people of no social rank, such as prisoners. Other petitions were from communities and groups, such as religious houses, the two universities, boroughs, and counties. These groups sometimes formed alliances in a common cause. Women sometimes petitioned. From 1293, the petitions were placed in four stacks for examination by the King and council, by the Chancery, by the Exchequer, or by the justices. Many hours were spent hearing and answering petitions. From 1305, the petitions were presented to the king in full Parliament. The king still exercised a power of legislation without a full Parliament. He might in his council issue proclamations. The Chief Justices still had, as members of the king's council, a real voice in the making of laws. The king and his justices might, after a statute has been made, put an authoritative interpretation upon it. Royal proclamations had the same force as statutes while the king lived; sometimes there were demands that certain proclamations be made perpetual by being embodied in statutes, e.g. fixing wages. There was no convention that agreement or even the presence of representatives was required for legislation. The idea that the present can bind the absent and that the majority of those present may outvote the minority was beginning to take hold. Edward I's councilors and justices took an oath to give, expedite, and execute faithful counsel; to maintain, recover, increase, and prevent the diminution of, royal rights; to do justice, honestly and unsparingly; to join in no engagements which may present the councilor from fulfilling his promise; and to take no gifts in the administration of justice, save meat and drink for the day. These were in addition to other matters sworn to by the councilors.