Theophilus kept his designs against John as secret as possible; and wrote to the bishops of every city, condemning the books of Origen.
Christianity · Church History · Ecclesiastical History
Book VIII, Ch. 14 — Perversity of Theophilus. St. Epiphanius: his Residence at Constantinople and Preparation to excite the People against John.
Ecclesiastical History · Salminius Hermias Sozomen