David Brainerd (1822). “Memoirs of the Rev. David Brainerd: Missionary to the Indians on the Borders of New-York, New-Jersey, and Pennsylvania: Chiefly Taken from His Own Diary”, p.122
William Law (1816). “A Serious Call to a Devout and Holy Life: Adapted to the State and Condition of All Orders of Christians by the Late ... ; to which is Added a Biographical Sketch of the Author”, p.39
John Newton, Richard Cecil (1824). “The Works of the Rev. J. Newton ...: With the Memoirs of the Author and General Remarks on His Life, Connections, and Character”, p.77