Both here and in xix. 7, Cyril speaks of things offered to idols just as S. Paul in 1 Cor. x. 20.  The Benediction of the water of Baptism is found in the Apostolic Constitutions, vii. 43:  “Look down from heaven, and sanctify this water, and give it grace and power, that so he that is to be baptized according to the command of Thy Christ, may be crucified with Him, and may die with Him, and be buried with Him, and may rise with him to the adoption which is in him, that he may be dead to sin and live to righteousness.”