Bellett was born in Dublin, Ireland. He was educated first at the grammar school in
Exeter, England, then at
Trinity College Dublin, where he excelled in classics, and afterwards in London. It was in Dublin that, as a layman, he first became acquainted with
John Nelson Darby, then a minister in the established
Church of Ireland, and in 1829 the pair began meeting with others such as
Edward Cronin and Francis Hutchinson for
communion and prayer. Bellett had become a Christian as a student and by 1827 was a layman serving the church. In a letter to James McAllister, written in 1858, he describes the episcopal charge of
William Magee,
Archbishop of Dublin, that sought for greater state protection for the Church. The
Erastian nature of the charge offended Darby particularly, but also many others including Bellett. The pair bonded particularly over prophetic issues, and attended meetings and discussions together at the home of Lady
Powerscourt, and Bellett and Darby (along with the Brethren movement in particular) were particularly associated with
dispensationalism and
premillennialism. ==Writings==