The Unsealed Bible is the first volume of George Chainey's projected 30-volume series, which was never finished. This occult-metaphysical commentary on the scriptures was published in 1902, after he founded the Mahanaim School of Interpretation around 1900 in Chicago, Illinois. Prior to founding the school, Chainey (b. 1851) had a long ministerial career first as a Methodist, and after 1877, as a Unitarian. He spent much of the 1880s touring the world as an independent author and lecturer on religion and mysticism. He settled in Chicago during the 1890s and devoted himself to writing an interpretation of the Bible.