I have been crucified with Christ.
But when I saw that their conduct was not in step with the truth of the gospel, I said to Cephas before them all, "If you, though a Jew, live like a Gentile and not like a Jew, how can you force the Gentiles to live like Jews?" (Galatians 2:14 ESV) This passage teaches us the importance of standing one's ground in terms of belief.