He had earlier opened a correspondence with Augustine, along with his friends Tyro and Hilarius, and although he did not meet him personally his enthusiasm for the great theologian led him to make an abridgment of his commentary on the Psalms, as well as a collection of sentences from his works - probably the first dogmatic compilation of that class in which Peter Lombard's Liber sententiarum is the best-known example.
The work was completed in August 1843, the five years' labour having been broken by the composition of reviews of Lockhart's Life of Scott (1838), Kenyon's Poems (1839), Chateaubriand (1839), Bancroft's United States (1841), Mariotti's Italy (1842), and Madame Calderon's Life in Mexico (1843), and by the preparation of an abridgment of his Ferdinand and Isabella in anticipation of its threatened abridgment by another hand.
His Letters on the Evidences of Christianity (1815) have been several times reprinted, and an abridgment was published by the Religious Tract Society in 1853.
On the other hand, unexpurgated copies were made in Matthew's lifetime; though the offending passages are duly omitted or softened in his abridgment of his longer work, the Historia Anglorum (written about 125 3), the real sentiments of the author must have been an open secret.
An abridgment of this appeared in 1889 with the title Grundriss der Dogmengeschichte (3rd ed., 1898).