Ante-Nicene Fathers/Volume V/Cyprian/The Treatises of Cyprian/Three Books of Testimonies Against the Jews/Book III/Part 50

50.&#160; That the sacrament of faith must not be profaned.

In Solomon, in the Proverbs: &#8220;Say not anything in the ears of a foolish man; lest, when he hears it, he may mock at thy wise words.&#8221; Also in the Gospel according to Matthew: &#8220;Give not that which is holy to dogs; neither cast ye your pearls before the swine, lest perchance they trample them down with their feet, and turn again and crush you.&#8221;