Give not that which is holy unto the dogs, neither cast your pearls before swine, lest they trample them under their feet, and turn again and tear you.
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Theophylact of Ochrid
AD 1107
The dogs are the unbelievers and the swine are believers who lead a filthy and shameful way of life. One ought not therefore to speak of the mysteries to the unbelievers, nor speak brilliant and lustrous words of theology to those who are unclean. For the swine trample them underfoot, that is, despise what is said, while the dogs turn on us and tear us limb from limb. This is what those so-called philosophers do; when they hear that God was crucified, they stab us with their syllogisms, reasoning with their sophistry that this is impossible.
