Theophylact of Bulgaria
Here is another fault of these most vile men. He says that they not only perish themselves, but also snatch away the children of the Church. This is the meaning of "those who separate," that is, they lead them beyond the bounds of the Church, the bounds of the faith, or even the very enclosure of the Church. They have made their own assemblies into dens of robbers, and they lead others away from the Church and bring them to themselves. They do this because they are soulish men, that is, living according to the manner of the world. We have already observed that Sacred Scripture is accustomed to call life itself by the word soul. The Apostle Paul also says that soulish men cannot receive the things of the Spirit of God (1 Cor 2:14). Therefore, being soulish, they also use soulish teaching, of which it is said: "This is not the wisdom that comes down from above, but is earthly, soulish, demonic" (Jas 3:15), not having the Spirit of God.