But when I saw that they are not walking uprightly to the truth of the good news, I said to Peter before all, `If thou, being a Jew, in the manner of the nations dost live, and not in the manner of the Jews, how the nations dost thou compel to Judaize?
Galatians 2:12 for before the coming of certain from James, with the nations he was eating, and when they came, he was withdrawing and separating himself, fearing those of the circumcision,
Galatians 2:13 and dissemble with him also did the other Jews, so that also Barnabas was carried away by their dissimulation.
Galatians 2:14 But when I saw that they are not walking uprightly to the truth of the good news, I said to Peter before all, `If thou, being a Jew, in the manner of the nations dost live, and not in the manner of the Jews, how the nations dost thou compel to Judaize?
Galatians 2:15 we by nature Jews, and not sinners of the nations,
Galatians 2:16 having known also that a man is not declared righteous by works of law, if not through the faith of Jesus Christ, also we in Christ Jesus did believe, that we might be declared righteous by the faith of Christ, and not by works of law, wherefore declared righteous by works of law shall be no flesh.'
The verse centers on "walking", "uprightly", "truth", "good", "news", "said", "peter", and "before". It is saying that the verse draws attention to "walking" and "uprightly", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 13's "and dissemble with him also did the..." into verse 15's "we by nature Jews and not sinners...", so "walking" and "uprightly" belong inside that flow. In Galatians context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "walking" and "uprightly" with trust shaped by these words, not by a vague optimism outside the passage.