1798 - He was an ordained pastor of the Cpngregational Church at West Newbury, Massachusetts.
1808-1846 - He was a professor at Andover Theological Seminary and later became the seminary's chair of Christian theology.
- He wrote Lectures on the Inspiration of the Scriptures, Memoirs of American Missionaries, Examination of the Doctrine of Perfection, and Lectures on Church Government.
1848 - His last book, History of Andover Seminary, was completed by his son, Leonard Woods Jr.