"The theology of Thomas Boston and his fellow 'Marrow men' represents one of the finest streams of Scottish theology. However, while Boston has been much studied, John Colquhoun, one of the great later exponents of the Marrow theology, has been unjustly neglected. In this excellent survey of Colquhoun's theology, this neglect is remedied, and the reader is introduced to the finest of Scottish theology on topics of perennial relevance, such as the gospel offer, assurance, faith, and repentance. This work on Colquhoun is of significant academic and pastoral value."
--Donald John MacLean, assistant professor of historical theology, Westminster Presbyterian Theological Seminary