By the latter half of the eighteenth century, hyper-Calvinism had frozen parts of the Baptist denomination in England. Do the unregenerate have a duty to believe in Christ unto salvation? Do Christians have an obligation to offer the gospel to sinners? Fuller believed so, and in this significant book, he demonstrates his positive answers to these questions through careful biblical and theological reflection. Historically, the book was effective as a catalyst for missions and evangelism among evangelicals of all stripes. Hanover Press is pleased to offer contemporary readers an attractive new edition of this classic treatise, with a new introduction, informative footnotes, and a Scripture index.