The church historian Socrates (c.440) refers twice to the Apology for Origen, written by Pamphilus and Eusebius. In these passages he actually offers two fragments from now lost books of this work. It is, however, uncertain whether Socrates used the original version written by Pamphilus or a version reworked and interpolated by a later unknown Origenist. From the patriarch Photius (ninth century) we can understand that different versions of the Apology existed. I suggest that Socrates used a further unknown version of the original Apology, adapted to the Origenist controversies of c.400.