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.
All Commentaries on Matthew 7:6 Go To Matthew 7
John Chrysostom
AD 407
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 but not by faith, and God gives the good things of this life equally to the worthy and the unworthy, but not so spiritual graces.
Otherwise; “That which is holy” denotes baptism, the grace of Christ’s body, and the like; but the mysteries of the truth are intended by the pearls. For as pearls are inclosed in shells, and such in the deeps of the sea, so the divine mysteries inclosed in words are lodged in the deep meaning of Holy Scripture.
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.
Or; The swine not only trample upon the pearls by their carnal life, but aftera little they turn, and by disobedience rend those who offend them. Yea often when offended they bring false accusation against them as sowers of new dogmas. The dogs also having trode upon holy things by their impure actions, by theirdisputings rend the preacher of truth.
Well is that said, “Lest they turn;” for they feign meekness that they may learn; and when they have learned, they attack.