On grounds of Scripture and reason he at length declared for Protestantism, and wrote in 1634, but did not publish, a confutation of the motives which had led him over to Rome.
As Bishop Fisher says in his Confutation of Luther, " in the early church, faith in Purgatory and in Indulgences was less necessary than now..
Harding followed with a Confutation, and Jewel with a Defence, of the Apology in 1566 and 1567; the combatants ranged over the whole field of the Anglo-Roman controversy, and Jewel's theology was officially enjoined upon the Church by Archbishop Bancroft in the reign of James I.
As a scholar Jablonski brought out a Hebrew edition of the Old Testament, and translated Bentley's A Confutation of Atheism into Latin (1696).
They are A Demonstration of the Gross and Fundamental Errors of a late Book called "A Plain Account, &c., of the Lord's Supper" (1737); The Grounds and Reasons of the Christian Regeneration (1739); An Appeal to all that Doubt and Disbelieve the Truths of Revelation (1740); An Earnest and Serious Answer to Dr Trapp's Sermon on being Righteous Overmuch (1740); The Spirit of Prayer (1749, 1752); The Way to Divine Knowledge (1752); The Spirit of Love (1752, 1754); A Short but Sufficient Confutation of Dr Warburton's Projected Defence (as he calls it) of Christianity in his "Divine Legation of Moses" (1757); A Series of Letters (1760); a Dialogue between a Methodist and a Churchman (1760); and An Humble, Earnest and Affectionate Address to the Clergy (1761).