If we measure ourselves as Christians by how well we follow the Law, we have returned to our slavery to sin. We are then measuring ourselves, “justifying” ourselves, by evaluating our behavior by the Law. For us religious folks, this is precisely what is meant by “a dog returning to its own vomit” (Proverbs 26:11; II Peter 2:22). And if we put other Christians under the Law, we are subjecting them to the very yoke of slavery Paul warned them about. We force them to return to their own vomit as well.