There shall be a council for advising the governor in the executive part of government, to consist of [nine] persons besides the lieutenant governor, whom the governor, for the time being, shall have full power and authority, from time to time, at his discretion, to assemble and call together. And the governor, with the said councillors, or five of them at least, shall and may, from time to time, hold and keep a council, for the ordering and directing the affairs of the commonwealth, according to the laws of the land. [See Amendments, Art. XVI.]