The Golden Calf story applied to the Manichaeans.

But when that imposture is crushed by the questions of the [L. 16.] Truth all his system has been exposed and laid bare. For as the question (?) of Moses shattered the Molten Calf, so the power of the Truth shatters the fabricated Teaching. But I know that [l] although the Calf was shattered the Jews did not flee from the worship of it, so also the Teaching of the Manichaeans has been well exposed, but the Manichaeans do not revile the worship of the Sun and Moon. For they are like one another in their blasphemies, even if they are not alike in their Scriptures. For as the Jews blaspheme against the New Testament, they (i.e., the Manichaeans) blaspheme against our Old Testament. [The parable of the Wineskins applied to Jews and Manichaeans.] But that (i.e., Scripture) is (both) new wine and old. For as for the old its-taste is in it, and its odour has not grown faint, but in the new there stirs the ferment of its power and of its violent heat. (?) But [P. 44, l. 10.] such vessels as do not receive the old convict themselves by their impurity, that (?) they are not even worthy to contain it. And such as do not receive the new they are old bottles which it (i.e., the new wine) convicts by its power that they are not able to bear it.

THE END OF THE SECOND DISCOURSE.