John Colquhoun (1748-1827), former pastor of New Church in South Leith, Scotland, was educated at Glasgow University. Shortly after his conversion he walked all the way from Luss to Glasgow, a distance of about fifty miles, to buy a copy of Thomas Boston's Fourfold State. This book had a moulding influence on his early Christian life. He came to esteem it next to his Bible. The influence of Boston's teaching was later to permeate his ministry and writings.