The persuasion of the Lord
The churches of Galatia added circumcision as a requirement for salvation, but circumcision belonged to the Law of Moses, and not the Law of Christ.
Accepting such a doctrine, the Galatian churches were no longer obeying the truth, and Paul said,
“This persuasion does not come from Him who calls you” (Galatians 5:8 NKJV).
Examine your beliefs constantly to make sure that whatever you have come to believe is a persuasion of the Lord, but if you discover that it is not, discard that belief immediately.