Athanasius' is "one of the last names that can be mentioned for the 13th- and 14th-century golden age of Copto-Arabic literature".[6] His ambit and his preference for Sahidic are representative of the southward shift of the Coptic centre of gravity under the Mamluks.[4][6] The sharḥ he wrote on his own grammar was the main source for Raphael Tuki's Rudimenta linguae coptae sive aegyptiacae ad usum Collegii Urbani de Propaganda Fide (1778).[4][10]