Porphyry, On Abstinence from Killing Animals in the early church

Texts outside the 66 books of the Protestant Bible. A bracket shows which other churches include a book in their Old Testament canon: RC = Roman Catholic, EO = Eastern Orthodox, ETH = Ethiopian Orthodox Tewahedo.

Neoplatonist treatise on vegetarianism (late third century AD); SBL abbreviation to be checked.

59 passages cite it, in date order.