From the 1640s to 1691, in a series of booklets, he eventually turned to an Arian position against the Trinity. His works are: • ‘Certain Queries, or points now in controversy examined,’ 1645. • ‘The Exaltation of Christ,’ London 1646, with an epistle to the reader by
Hanserd Knollys prefixed. • Letters dated Guildford, 20 April 1646, and London, 2 May 1646: printed in Edwards's ‘Gangræna,’ ii. 51, 52, and in
Benjamin Brook's
Lives of the Puritans, iii. 28, 29. • ‘The Marrow of Christianity,’ London 1647. • ‘The Glory of Christ, and the Ruine of Antichrist, unvailed,’ 1647. • ‘A Brief Discovery of the Corruption of the Ministry of the Church of England,’ Lond. 1647. • ‘A Discovery of the New Creation. In a Sermon preached at the Head-Quarters at Putney,’ London 1647. • ‘A Vindication of the Army Remonstrance,’ London 1648. This was in reply to a tract by
William Sedgwick. • ‘A General Epistle to the Universall Church of the First Born,’ London 1648. • ‘A Second Generall Epistle to all the Saints,’ London 1649. • ‘The Heads and Substance of his Discourse with John Smith and Charles Carlile,’ London 1651. • ‘Narrative of the Conference between John Smith and Thomas Collier,’ London 1652. • ‘The Pulpit-guard routed in its twenty Strongholds,’ London 1652, in answer to a book published in the previous year by Thomas Hall of King's Norton, Worcestershire, entitled ‘The Pulpit guarded.’ Hall replied to Collier, who published a rejoinder, with answers to comments which had been made on his work by
John Ferriby and Richard Saunders • ‘The Right Constitution and True Subjects of the Visible Church of Christ,’ London 1654. • ‘A Brief Answer to some of the Objections and Demurs made against the coming in and inhabiting of the Jews in this Commonwealth,’ London 1656. • ‘A Looking-glasse for the Quakers,’ London 1657. In reply to
James Naylor. • ‘A Discourse of the true Gospel-Blessedness in the New Covenant,’ London 1659. • ‘The Decision of the Great Point now in Controversie about the Interest of Christ and the Civill Magistrate in the Government of this World,’ London 1659. • ‘The Body of Divinity,’ London 1674. • ‘Additional Word to the Body of Divinity,’ 167–, to which
Nehemiah Coxe published a reply. • ‘A Doctrinal Discourse of Self-denial,’ London 1691. ==References==