Giles was involved in the condemnation of 1277 promulgated by Étienne Tempier. Several of his opinions had been found reprehensible by Archbishop Tempier, and in 1285 Pope Honorius IV asked him for a public retraction. This, however, was far from lessening his reputation, for in 1287 a decree of the general chapter of the Augustinians held in Florence, after remarking that Giles's doctrine "shines throughout the whole world" ("venerabilis magistri nostri Ægidii doctrina mundum universum illustrat"), commanded all members of the order to accept and defend all his opinions, written or to be written.