Didymus the Blind (c. 313—c. 398) was a textual scholar and ascetic practitioner. He is not associated with any of the major ascetic settlements around Alexandria and appears to have spent his entire life in or near the city. He is most known for his treatises On the Holy Spirit and On the Trinity (although the authorship of the latter is disputed) and for his biblical commentaries.Although the Council of Nicaea in 325 took place when Didymus was still a schoolboy, controversy and competition by the parties involved continued through Didymus’ lifetime. Didymus himself supported the decision of the Council, which the Alexandrian bishop, Athanasius, had promoted. After Didymus’ death, however, he was no longer associated with the orthodoxy of the day and, because of his reception of Origen of Alexandria, was condemned, along with Origen and Evagrius Ponticus, in connection with the 2nd Council of Constantinople in 553.