Abigail Adams, John Adams, L. H. Butterfield, Marc Friedlaender, Mary-Jo Kline (1975). “The Book of Abigail and John: Selected Letters of the Adams Family, 1762-1784”, p.113, UPNE
Jonathan Edwards (1793). “History of Redemption, on a Plan Entirely Original: Exhibiting the Gradual Discovery and Accomplishment of the Divine Purposes in the Salvation of Man, Including a Comprehensive View of Church History and the Fulfilment of Scripture Prophecies”, p.354