Theophylact of Bulgaria
Then he gives them another sign of the false prophets. This was something that greatly troubled the simple among the faithful. Some of them could naturally grieve when they saw that many received those men with great zeal, while they despised the faithful. The Apostle says: do not grieve if many despise you and receive them. Like seeks like. They are of the world and speak worldly things, that is, they teach fleshly desires. Therefore they have hearers of the same kind: the corrupt hear the corrupt.