1John 4:5

“"These are of the world." Who? The antichrists. Ye have already heard who they be. And if ye be not such, ye know them, but whosoever is such, knows not. "These are of the world: therefore speak they of the world, and the world heareth them." Who are they that "speak of the world"? Mark who are against charity. Behold, ye have heard the Lord saying, "If ye forgive men their trespasses, your heavenly Father will forgive you also your trespasses. But if ye forgive not men their trespasses, neither will your Father forgive your trespasses." It is the sentence of Truth: or if it be not Truth that speaks, gainsay it. If thou art a Christian and believest Christ, He hath said, "I am the truth." This sentence is true, is firm. Now hear men that "speak of the world." "And wilt thou not avenge thyself? And wilt thou let him say that he has done this to thee? Nay: let him feel that he has to do with a man." Every day are such things said, They that say such things, "of the world speak they, and the world heareth them." None say such things but those that love the world, and by none are such things heard but by those who love the world. And ye have heard that to love the world and neglect charity is to deny that Jesus came in the flesh. Or say if the Lord Himself in the flesh did that? if, being buffeted, He willed to be avenged? if, hanging on the cross, He did not say, "Father, forgive them, for they know not what they do"? But if He threatened not, who had power; why dost thou threaten, why art thou inflated with anger, who art under power of another? He died because it was His will to die, yet He threatened not; thou knowest not when thou shall die, and dost thou threaten?”

“They are from the world, etc. The Antichrists, that is, the heretics, even if they invoke the name of Christ or mark themselves with the sign of Christ, still they are from the world, that is, from the number of those who think worldly thoughts, who seek the lowly things, who are ignorant of celestial matters. And thus they speak of the world, namely by the reason of worldly wisdom opposing the Christian faith, saying that it cannot be that the Son of God is coeternal with the Father, that an untouched virgin gives birth, that flesh rises from dust, immortal, that a man brought forth from the earth perceives a dwelling in the heavens, that a newborn infant is held bound by the guilt of the first man unless reborn in Christ through the water of baptism is saved.”

“And the world listens to them. For the hearts of the spiritual cannot be recalled to worldly and carnal senses from the simplicity of faith. But even the Catholics who, hearing that saying of the Lord: "Love your enemies, do good to those who hate you, and pray for those who persecute and calumniate you" (Matthew V); and again: "If you forgive men their trespasses, your heavenly Father will also forgive you; but if you do not forgive men, neither will your Father forgive your trespasses" (Matthew VI), say they cannot in any way leave their injuries unavenged: these indeed are proved to be of the world, and hence they speak of the world. And because they do not have the bowels of charity, they keep the inviolate mysteries of faith in vain. Nor can they be without the name of Antichrist, who are shown to be opposed to the commands of Christ.”

“Then he gives them yet another mark of the false prophets, in that it greatly distressed the simple ones among the faithful themselves. Some of them could naturally grieve, seeing that many received those others very eagerly, while they themselves were despised. The Apostle also says: do not grieve if many despise you while accepting them; for like is drawn to like: they are of the world and speak worldly things, that is, they teach fleshly desires, which is why they also have listeners of the same kind, that is, the corrupt have corrupt listeners.”

“They are from the world, therefore they speak from the world, and the world listens to them. For a similar thing runs to its like. "They are from the world, therefore they speak from the world." They are of the world, and when they speak of the world, that is, they teach according to fleshly desires, they have those who obey them, the perverse with the perverse. But we, being from God and alienated from fleshly desires, cannot be received by them.”