Though he never became an acknowledged disciple of John Henry Newman (later Cardinal Newman), the latter's influence meant that from this date Manning's theology assumed an increasingly High Church character and his printed sermon on the "Rule of Faith" publicly signalled his alliance with the Tractarians.
Four volumes of Manning's sermons appeared between the years 1842 and 1850 and these had reached the 7th, 4th, 3rd and 2nd editions respectively in 1850, but were not afterwards reprinted.