The Sabellian heresy may be briefly described as the doctrine of One God exercising three offices, as opposed to the Catholic Faith of One God in three Persons. Sabellius himself was a Priest of the Libyan Pentapolis, who at Rome in the time of Pope Zephyrinus embraced the heresy of Notus, which maintained that God the Father suffered for us on the cross in the form of Christ. His followers, who openly declared themselves first about a.d. 357, thought that God, to Whom as the Source of all things the name of Father is given, is called the Son when He united Himself to the humanity of Jesus for the work of our redemption; and in like manner He is the Holy Spirit when manifested for the work of sanctification. Sabellius was condemned by a Council held at Rome, probably in 258; again at Nicæa, and again at Constantinople, where Sabellian Baptism was pronounced invalid.