Clavis exousiasichē [sic]: = The key of ordination. Or, Missio potestativa. Oichonomichē: ministerial power: or, Authoritative separation of men to the work of Christ, a ministerial privilege.A sermon preached at the ordination of Mr. Thomas Porter Master of Arts, Mr. John Wilson, Mr. David Jenks, Mr. George Burraston, and Mr. Tho: Soley, at Whitchurch in the county of Salop. /