Spiritual Refining (Volume 1, 1652), A Treatise of Grace and Assurance. Wherein are handled: The Doctrine of Assurance; The Use of Signs in Self-examination; How true Graces may be distinguished from counterfeit; Several true Signs of Grace, and many false ones; The Nature of Grace under divers Scripture Notions or Titles, as Regeneration, The New-creature, the Heart of Flesh, Vocation, Sanctification, etc. Many chief Questions (occasionally) controverted between the Orthodox and the Arminians. As also many Cases of Conscience Tending to Comfort and confirm Saints and Undeceive and convert Sinners. Being 120 Sermons

"The true work of grace separated from the counterfeit, with the assurance thereof, is the main subject of this book, and should be of our constant thoughts and meditations; this will be useful, when all other things will vanish." (From: To The Reader).