The story as told by Theodoret (Ecc. Hist. ii. 23) is as follows:  “Constantius, on his return from the west, passed some time at Constantinople” (i.e. in 360, when the synod at Constantinople was held, shortly after that of the Isaurian Seleucia, “substance” and “hypostasis” being declared inadmissible terms, and the Son pronounced like the Father according to the Scriptures).  The Emperor was urged that “Eudoxius should be convicted of blasphemy and lawlessness.  Constantius however…replied that a decision must first be come to on matters concerning the faith, and that afterwards the case of Eudoxius should be enquired into.  Basilius (of Ancyra), relying on his former intimacy, ventured boldly to object to the Emperor that he was attacking the apostolic decrees; but Constantius took this ill, and told Basilius to hold his tongue, for to you, said he, the disturbance of the churches is due.  When Basilius was silenced, Eustathius (of Sebasteia) intervened and said, Since, sir, you wish a decision to be come to on what concerns the faith, consider the blasphemies uttered against the Only Begotten by Eudoxius; and, as he spoke, he produced the exposition of faith, wherein, besides many other impieties, were found the following expressions:  Things that are spoken of in unlike terms are unlike in substance; there is one God the Father of Whom are all things, and one Lord Jesus Christ by Whom are all things.  Now the term ‘of Whom’ is unlike the term ‘by Whom;’ so the Son is unlike God the Father.  Constantius ordered this exposition of the faith to be read, and was displeased with the blasphemy which it involved.  He therefore asked Eudoxius if he had drawn it up.  Eudoxius instantly repudiated the authorship, and said that it was written by Aetius.  Now Aetius…at the present time was associated with Eunomius and Eudoxius, and, as he found Eudoxius to be, like himself, a sybarite in luxury as well as a heretic in faith, he chose Antioch as the most congenial place of abode, and both he and Eunomius were fast fixtures at the couches of Eudoxius.…The Emperor had been told all this, and now ordered Aetius to be brought before him.  On his appearance, Constantius shewed him the document in question, and proceeded to enquire if he was the author of its language.  Aetius, totally ignorant of what had taken place, and unaware of the drift of the enquiry, expected that he should win praise by confession, and owned that he was the author of the phrases in question.  Then the Emperor perceived the greatness of his iniquity, and forthwith condemned him to exile and to be deported to a place in Phrygia.”  St. Basil accompanied Eustathius and his namesake to Constantinople on this occasion, being then only in deacon’s orders.  (Philost. iv. 12.)  Basil of Ancyra and Eustathius in their turn suffered banishment.  Basil, the deacon, returned to the Cappadocian Cæsarea.