But he afterwards comes to the discharge of his prophetic office; for he was bid to write the vision on tables, and to write it in large letters, that it might be read, and that any one, passing by quickly, might be able by one glance to see what was written: and by this second part he shows still more clearly that he treated of a common truth, which belonged to the whole body of the Church; for it was not for his own sake that he was bid to write, but for the edification of all.