We are attracted to some heresies because of what they offer. They pander to our sinful cravings. They do things for the Pelagian within us, or for our inner Rationalist. We are drawn to some errors, however, not by their mock spiritual worth but by the threat of adverse consequences. We are driven by fear. The classic New Testament example of this comes from Galatians, and the corresponding section in Acts 15. There was a compulsion to accept the ritual of circumcision on pain of exclusion, not merely from God's people, but from salvation (Acts 15:1-2; Galatians 6:12).
No wonder then that Paul's opening salvo is directed to those who "trouble you" and want to "distort the gospel of Christ" (Gal. 1:7). The deviant influence of the false teachers was not only upon the gospel but also upon the spiritual well being of the Galatian churches. "Filling them," wrote John Brown, "with doubts and alarms as to the safety of their state while they remained uncircumcised and unsubjected to the law of Moses."
As much as errors can come to us laden with promises of blessings they may also, at the same time, speak threatening words if we refuse them.