He returned to England after three years and engaged in a religious controversy with Edward Stillingfleet (8 August 1671).
In this discussion, an account of which he published in 1684, he was aided by Edward Colman, who was executed seven years later for alleged complicity in the Popish Plot.
In 1682, Meredith wrote a reply to one Samuel Johnson, who had libelled the Duke of York in a work entitled "Julian the Apostle".
The year of his death is uncertain, but his will, dated 1715, is said to be preserved in the archives of the English College, Rome.
He translated a devotional work from the Latin under the title "A Journal of Meditations for every day of the year" (London, 1687).