Ironically, he seems to applaud their duplicity because it will, his characters believe, be spiritually edifying.
It was an edifying experience.
It was an edifying sight, particularly spread over seven years.
Sermons that edify are well attended; and his parishioners are as much edified by his good example as by his excellent discourses.
Many of his general exhortations are but very indirectly connected with the practical issue to which the epistle is directed, and it is very probable that he was drawing largely upon the homiletical material with which he was accustomed to edify his fellow-Christians at Rome.