A martyr of the Thebaid
Caluf was an Egyptian Christian of the city of Thebes, in the Thebaid of Upper Egypt. The tradition assigns his martyrdom to the early fourth century, during the persecution of the Church under the emperors Diocletian and Maximian, one of the fiercest of the imperial persecutions and one that fell with special severity on Egypt.
Seized for confessing Christ, he was brought before the prefect of the city. According to the account he was hung up head downward and beaten without mercy, and as he suffered he said that he endured everything in expectation of the life to come. When his torturers loosed him and demanded that he sacrifice to the idols, he would not consent; he was therefore thrown into a fire and gave up his soul, by the tradition in the year 303. The Orthodox Church keeps his memory on May 19.