Few people know that the Secret Service has not only far more to do than to protect the President. That is not even their primary job. Working under the Treasury Department, one of their major jobs is to try to catch counterfeiters. Therefore they have to learn how to recognize counterfeit money.

The surprising thing is, the way they are trained to do this is not by studying counterfeit money, but by studying real currency. The better they get to know the real thing, the easier it is to spot the phony.

Jude knew the real thing. He was the real thing. He could spot a spiritual counterfeit in a church fifty pews away. He is telling us here how to spot counterfeit Christians; apostates who may look like Christians on the outside, but are definitely not Christian on the inside.

One of my fa…