[2] In 1815 he returned to Cambridge to fill the post of Lord Almoner's Professor of Arabic, which he held till 1821.
For a time he also acted as curate of Grantchester, near Cambridge, but in 1818 was presented to the valuable college living of Swanscombe, Kent.
During the forty-nine years that he resided at Swanscombe, he maintained a voluminous correspondence with the most distinguished orientalists and geographers of Europe, and was an industrious contributor to the journals of learned societies.
For the British and Foreign Bible Society he corrected the proofs of the translations of the scriptures into Turkish and other eastern languages.
He was a leading member of the translation committee of the Royal Asiatic Society, to which he was elected in 1824, revising many of its publications.