Actions for The divine institution of the Gospel ministry, and the necessity of episcopal ordination, asserted [electronic resource] : In a sermon preach'd at the primary visitation of the Right Reverend Father in God of spring, lord bishop of Exon, held at Okehampton, August the 19th, 1709. By William Roberts, rector of Jacobstow, in the county of Devon. Publish'd by his Lordship's command, and at the request of the Reverend the Clergy