Obadiah Sedgwick, English Puritan (1600 -- January 1658) was a Presbyterian and a member of the Westminster Assembly of Divines. He was the author of Christ's Counsel to a Languishing Church; The Anatomy of Secret Sins; Haman’s Vanity, OR, A SERMON Displaying the birthlesselssues of Church Destroying Adversaries. Preached to The Honourable House of COMMONS At their late solemne Thanksgiving, being on June 15. 1643; The Humbled Sinner Resolved what He Should Do to be Saved: Or, Faith in the Lord Jesus Christ; The Doubting Believer; The Nature and Danger of Heresies; among other works. He was the father-in-law of Thomas Manton.