Without needing or wanting to name them, Paul refers to the Judaizers who have already been described as ‘some that trouble you’, as those who ‘want to pervert the gospel of Christ’, and who have been in mind throughout this letter. Even after many verses when they have not been mentioned, it is obvious who he means.
There are times when Satan comes at us in fury and hostility and it is obvious that he aims to crush us. He approaches us with malice and tries to terrify us with it. But at other times he employs deceit and hides his true intent under his coat. Do we have the wisdom to tell who are our enemies are who are our friends?
It is easier to reject the approach of a hostile person than of someone who feigns kindness. The Galatians needed to recognise the false affections of the Judaizers and to reject their solicitations. If they did so, they would soon see their enemies’ true character, since they would break out in fury at having their purposes thwarted, for it was really concealed pride that made them try to spoil the apostle’s work.