Shepherd keeps flock pure; bestiality type of alien teaching; slaves next

Cyril: …a human of Judah, a beloved newly planted.’ So a virtue of a shepherd is not to let loose upon sheep some animal of another form, so that they fall under somehow foreign mountings, lest it bear something of another nature, and having bent away from the natural good birth present in it; and the caretaker of vineyards, if he should be sensible and have practiced farming most excellently, would never endure the dry of the seeds to grow under the vines themselves, lest, the moisture being spent for them unto the alien, they themselves fall short concerning what is their own. Come then already somehow from an image now unto the spiritual: let us not allow the rational flocks to be led unholily under the sowings of the otherwise-teaching—intelligible ones clearly, and the introductions as in word; for the fruit from dissimilar resolve is very ugly, and the words of those not of like faith would become providers of base conceptions for those who have received them; and we being vineyards, and lying in the order of orchards, it is somehow fitting to be crowned with single-formed fruit, and to decline the double-natured mode. For there is no word unto natural likeness for wheat and clusters. So let there be for none of us a place of alien seeds.

Palladius: You speak well.

Cyril: And in another way also he shows the differently mannered as unjoined and incompatible, and split from communion toward one another, having set beside as a type the most outlandish and altogether strange joining of the rational animal toward what is not such, but of another form and out of tribe. And indeed he also says in Exodus: ‘Whoever should sleep with a beast, you will kill him by death.’ And more clearly again in Leviticus: ‘And whoever should give his lying in a four-footed animal, let him be put to death by death, and you will kill the four-footed; and a woman who should approach unto every beast to be forced by it, you will kill the woman and the beast; let them be put to death by death; they are liable.’ For converses and as it were intelligible mixings and joinings toward those for whom it would least be fitting, and for whom the mind has sickened unto unreason the last, are providers of death, both for those who corrupt and for those who endure the corruption as voluntary.

Palladius: Most uprightly and very holily the law speaks.

Cyril: And you would still marvel also at this; for there were somehow some who, as from unbearable grasping, even if they should not wish to endure the corruption from uprightness of thoughts unto what holds sideways, also somehow from necessity, perhaps not without tears, suffer the wandering. So the law did not think fit to overlook even such a race as without help.

Palladius: What sort of thing do you mean?

Cyril: The one bound tight with a yoke of slavery and held down by the authorities of those who have bought them.