Paul is confident that the Galatian believers will persevere in Christian truth, that the Lord will continue the good work he has begun in them (Philippians 1:6). He is confident that his explanations and the warnings found in his letter will be used by God to keep them in the faith.1
10 I have confidence in the Lord that you will take no other view, and the one who is troubling you will bear the penalty, whoever he is.