The Twenty First Proof that Clement of the Alexandrian See of St. Mark Was a Prominent Leader of the Tradition Irenaeus Identifies as 'Marcosian'

21. Irenaeus writes of the Marcosians that they hold that "if the first Tetrad be added up according to the progression of number, the number ten appears. For one, and two, and three, and four, when added together, form ten; and this, as they will have it, is Jesus." [AH i.15.2]

Philo of Alexandria writes that "for what the decade is in actuality, that the number four, as it seems, is in potentiality, at all events if the numerals from the unit to Four{3}{by addition, that is 1+2+3+4= 10.} are placed together in order, they will make ten, which is the limit of the number of immensity, around which the numbers wheel and turn as around a goal." ["De Opificio Mundi," §§ 15, 16 [i.10, 11], etc]

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