“Give not that which is holy unto the dogs, neither cast ye your pearls before swine, lest they trample them under their feet, and turn again and rend you.”
Matthew 7:6 — Greek Interlinear
Church Fathers on Matthew 7:6
Because the simplicity to which He had been directing in the foregoing precepts might lead some wrongly to conclude that it was equally wrong to hide the truth as to utter what was false, He well adds, 'Give not that which is holy to the dogs, and cast not your pearls before swine.'
Otherwise; The Lord had commanded us to love our enemies, and to do good to those that sin against us. That from this Priests might not think themselves obliged to communicate also the things of God to such, He checked any such thought saying, 'Give not that which is holy to the dogs;' as much as to say, I have bid you love your enemies, and do them good out of your temporal goods, but not out of My spiritual goods, without distinction. For they are your brethren by nature…
And to those that are right-minded and have understanding, when revealed they appear good; but to those without understanding, they seem to be more deserving reverence because they are not understood.