Book excerpt: This book provides the first major analysis of the covenanted interest from an integrated three kingdoms perspective. It examines the reaction of the covenanted interest to the actions and policies of the Commonwealth and Protectorate, drawing particular attention to links, similarities and differences in and between the covenanted interest in all three kingdoms. It also follows the fortunes of the covenanted interest and Presbyterian Church government as it built and changed in response to the Royalists and the Independents during the 1650s.