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In page Sophia of Jesus Christ:

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The debate about dating is critical, since some argue that it reflects the "true, recorded, sayings" of Jesus, which is possible if they were to be dated as far back as the 1st century. Others argue that they are, in fact, considerably later, and constitute an unreliable secondary source (at best post factum hearsay).[citation needed] Roel van den Broek argues that because the text presupposes a familiarity with gnostic myth, it is unlikely to predate the mid-second century.[1]