There is no allegory at all in the Thomas version, and the point is made by a generalizing conclusion which reflects gnostic contempt for the material world and those engaged in its business. (religion-online.org)
It does not reflect the situation of the Church, nor, except for the generalizing conclusion, is it at all concerned with anything specifically gnostic. (religion-online.org)
The generalizing conclusion in v. 14b is certainly foreign to the parable itself. (religion-online.org)