Augustine of Hippo, on Titus 1:15

“All things are clean to the clean: but to them that are defiled, and to unbelievers, nothing is clean: but both their mind and their conscience are defiled.”

“The Jews, you see, had accepted that there were certain animals which they could not eat, and others from which they must abstain. The apostle Paul makes it clear that they received this law as a symbolic sign of future realities.”

Imported from an open dataset — not yet checked against the printed edition.