Galatians 2:2
2 I went up because of a revelation and set before them (though privately before those lwho seemed influential) the gospel that mI proclaim among the Gentiles, nin order to make sure I was not running or had not orun in vain.
Galatians 5:2
2 Look: I, Paul, say to you that xif you accept circumcision, yChrist will be of no advantage to you.
Galatians 5:4
4 You are asevered from Christ, byou who would be justified1 by the law; cyou have fallen away from grace.
1 Thessalonians 3:5
5 For this reason, iwhen I could bear it no longer, iI sent to learn about your faith, jfor fear that somehow kthe tempter had tempted you and lour labor would be in vain.