Galatians 5:7

Ye were running well; who hindered you that ye should not obey the truth?

In all Paul's writings, he sought to lead people into "the obedience of faith"; and his writings in Galatians do not deviate from that invariable purpose.

Who did hinder you ... The original meaning of the word translated hinder is to break up a road, as an army before the advance of hostile forces."[10] A paraphrase of this metaphor, is "Who tore up the race track in front of you?"

That ye should not obey the truth ... "Some of the Galatians had stopped obeying the truth, as taught by Paul and the other apostles, perhaps neglecting to observe the Lord's supper and failing to do other things which have been distinctive of the Christian life in all ages. The clause here shows that this disobedience was a prime concern of the apostle's. Note, particularly, that it is not said that they had stopped "believing in Christ," for there is no evidence that such was the case. "Faith only" for them was as impotent as it is today. By their failing into Jewish observances, they were neglecting and had stopped obeying the teachings of Christ.