Spring, Samuel. A Sermon, preached at the Ordination of The Reverend Pearson Thurston, Pastor of the church in Somersworth, February 1st, 1792. Dover [NH]: Eliphalet Ladd, 1792. First Edition. Evans 24810.
Removed, 5 x 8 1/2, 25 pp., (1) blank. Good. Paperback. 
The text is 2 Corinthians 2: 16, "Who is sufficient for these things?"
"If the graceless ministers will either deliver false and dangerous doctrines, or preach the truth in a graceless unbelieving manner, who except the real christian is qualified for the sacred office?"
Rev. Samuel Spring, D.D. (1746-1819), born at Northbridge, Massachusetts, graduated at the College of New Jersey, 1771, served the American Army in the War of the Revolution as Chaplain and marched to Canada with the forces under Colonel Arnold. In 1777 he was ordained at Newburyport, Massachusetts, and served in this church until his death. Dr. Spring was instrumental in the founding of Andover Theological Seminary. “His personal appearance,” says Dr. Woods, “was marked with nobleness; his countenance was indicative of lofty intelligence, and ardent, benevolent feeling; his intellect was clear, active, and penetrating.”
Rev. Pearson Thuurston (1763-1819), a native of Lancaster, MA; graduated at Dartmouth in 1787, served the church over which he was ordained in 1792 until 1812, was known as a Hopkinisan in doctrine.