Chapter IV.—Ceremonies of Baptism and Chrism. § 1.  Renunciation.  We have seen that Cyril’s last Catechetical Lecture was delivered in the early dawn of the Great Sabbath, Easter Eve.  The additional instructions then promised165 concerning the behaviour of the Candidates were given on the same day, probably in the evening, when they were all assembled immediately before the administration of Baptism.  The most important parts of the Baptismal ceremony are described by Cyril in the first Mystagogic Lecture, delivered on the Monday of Easter week.  Thus in § 1 he says, Let us now teach you these things exactly, that ye may know the significance of the things done to you on that evening of your Baptism.” The first act was the renunciation of the Devil and all his works.  This, as described by Tertullian, was done first in the Church “under the hand of the Bishop,” and again immedi- ately before entering the water166.  Cyril speaks of the latter occasion only.  “First ye entered into the outer chamber of the Baptistery, and there facing towards the West (as the region of darkness) ye heard the command to stretch forth your hand, and as in the presence of Satan to renounce him167.”  For the formula of renunciation in the Apostolical Constitutions, see note 2 on Mystag. i. § 8; it corresponds closely with Cyril’s, except that this is addressed to Satan as if personally present:  “ I renounce thee, Satan 168, and all thy works169, and all thy pomp170, and all thy worship171.” § 2.  Profession of Faith.  After the renunciation of Satan the Candidate immediately turned to the East and said, “And I associate myself (συντάσσομαι ) with Christ.”  Cyril does not give the words, but seems to allude to the custom, when he speaks of the Candidates “turning from the West to the East, the place of light172.” Then, still facing the East, the Candidate was bidden to say, “I believe in the Father, and in the Son, and in the Holy Ghost, and in one Baptism of repentance173.”  We have seen that in Cat. xviii. 22, 32, Cyril intimated to his Candidates that they would be required to profess publicly the Creed which he had delivered to them and which they had repeated after him.  This public profession of faith (῾Ομολογία, “Redditio Symboli”) was in some 165 Cat. xviii. § 32, 166 De. Cor. Mil. c. 3. 167 Myst. i. § 2. 168 § 4. 169 § 5. 170 § 6. 171 § 8. 172 § 9, note 3. 173 Compare xviii. 22:  “One Baptism of repentance for the remission of sins.” Ceremonies of Baptism and Chrism. 36 Ceremonies of Baptism and Chrism.