Like other literary communities in the Long Eighteenth Century, English Particular Baptists turned to the writings of the Congregationalist John Owen (1616–1683) to bolster their own doctrinal, exegetical, and polemical arguments. One of these Particular Baptists, Benjamin Keach (1640–1704), never wavered in his commitment to the memory and writings of Owen, quoting him over 200 times. Over the past twenty years, Keach scholarship has noted Keach’s frequent use of Owen; Owen was, according to D.B. Riker, “Keach’s darling: truly, his most cherished and positively mentioned author.” While many have noted Keach’s reliance on Owen, no comprehensive study of Keach’s use of Owen exists. Across his vast corpus, Keach appropriated the published writings of Owen to bolster his defense of Reformed Orthodoxy, to defend key points of Baptist ecclesiology, and to engage in intra-Baptist squabbles. First, in his writings against Socinian and antinomian heterodoxy, Keach appealed to Owen to defend tenets of Reformed Orthodoxy, such as the doctrines of Scripture, the Trinity, Christology, the atonement, and justification. Second, like Nehemiah Coxe (d. 1689), Keach turned to Owen’s distinctive understanding of the Mosaic covenant—found in Owen’s Hebrews commentary—to argue for believer’s baptism and congregational polity. Third, Keach employed Owen’s detailed exegesis to argue against the Saturday Sabbatarians and for the practice of congregational hymn-singing. In general, Keach represented Owen faithfully, even if he used Owen’s principles to defend doctrines (like believer’s baptism) that Owen did not affirm. Occasionally, Keach interpreted him erroneously, arguing the exact opposite of what Owen intended in his original work. Like other Particular Baptists who used the Congregationalist statesman, Keach’s consistent appeal to Owen reflected their self-conception of being part of the Reformed tradition.