...from Roman Mithraism? Baptism in Mithraism
The disciplinary grades of Mithras are reported to be eighty in number, through which the candidate for initiation must pass in succession. In addition to those already described there is immersion in water- Cosmas of Jerusalem
Trinity in Mithraism
At any rate then, this is reported by the Persian sacerdotal legends, and to this day, Magi celebrate the memorials of the triune Mithras- 'Dionysius the Areopagite', Epist. 7 (p. 96)
Lord's Supper in Mithraism
For the apostles, in the memoirs composed by them, which are called Gospels, have thus delivered unto us what was enjoined upon them; that Jesus took bread, and when He had given thanks, said, "This do ye in remembrance of Me, this is My body; and that, after the same manner, having taken the cup and given thanks, He said, "This is My blood; "and gave it to them alone. Which the wicked devils have imitated in the mysteries of Mithras, commanding the same thing to be done- Justin Martyr, 1 Apology. 66 (108)
The disciplinary grades of Mithras are reported to be eighty in number, through which the candidate for initiation must pass in succession. In addition to those already described there is immersion in water- Cosmas of Jerusalem
Trinity in Mithraism
At any rate then, this is reported by the Persian sacerdotal legends, and to this day, Magi celebrate the memorials of the triune Mithras- 'Dionysius the Areopagite', Epist. 7 (p. 96)
Lord's Supper in Mithraism
For the apostles, in the memoirs composed by them, which are called Gospels, have thus delivered unto us what was enjoined upon them; that Jesus took bread, and when He had given thanks, said, "This do ye in remembrance of Me, this is My body; and that, after the same manner, having taken the cup and given thanks, He said, "This is My blood; "and gave it to them alone. Which the wicked devils have imitated in the mysteries of Mithras, commanding the same thing to be done- Justin Martyr, 1 Apology. 66 (108)