But I saw they were swerving from the true line of the gospel; so I said to Cephas in presence of them all, "If you live like the Gentiles and not like the Jews, though you are a Jew yourself, why do you oblige the Gentiles to become Jews?" ??15 We may be Jews by birth and not 'Gentile sinners,'

Now the promises were made to Abraham and his line. It does not say, "and to your lines," in the plural, but in the singular, "and to your line," that is, Christ.

Do take my line, brothers, I beg of you ??just as I once took yours. I have no complaint against you;

If we [claim to] live by the [Holy] Spirit, we must also walk by the Spirit [with personal integrity, godly character, and moral courage—our conduct empowered by the Holy Spirit].