Anthony Wood commented that he could write and dispute in Greek as in English or Latin. Some describe him as the greatest classical scholar of his time Queen Elizabeth's Grammar Independent School, Blackburn, Lancashire, UK | QEGS - History. James Darling, founder of the Metropolitan Library in London, England in 1840, wrote:
- "He was one of the best scholars of his time, a zealous and successful preacher, and particularly skilled in resolving the doubts of timid Christians. His style is florid and often truly magnificent."
In his well known book,
General directions for a Comfortable Walking with God, Bolton discusses subjects like Idleness, Government of the Tongue, Recreations, Visitations, Sleep, and Marriage.
In
The Saints Sure and Perpetual Guide, Bolton argued against separation.