Spiritual Refining (Volume 2, 1654), A Treatise of Sin With its Causes, Differences, Mitigations and Aggravations. Particularly of the desperate Deceitfulness of Man's Heart, of Presumptuous and Reigning Sins, and of Hypocrisy and Formality in Religion. Also occasionally handling the Uprightness and Tenderness of a Gracious Heart; and therein discovering the nature of a misguided Conscience, as also of secret and unknown sins that the best men are guilty of, with Directions to the godly under their fears about them. Showing withal, that a strict scrutiny into a man's heart and ways, with a holy fear of sinning, doth consist with a Gospel-life of faith and joy in the Holy Ghost. All tending to Unmask counterfeit Christians; Terrify the Ungodly; Comfort and Direct the Doubting Saint; Humble Man; Exalt the Grace of God. In 42 Sermons

"These sermons were prepared as part of that former treatise, styled, Spiritual Refining, but that book swelling in bulk, made these draw back, yet because of their perpetual usefulness, as long as men have hearts, and are subject to temptations, it was thought fit not to hide this light under a bushel." (From: The Epistle to the Reader).