[one Lord one faith one baptism]

in Christ, there is neither Jew nor Greek. the flesh means nothing, the spirit is all that matters.

the true Jew is one inwardly, who is in Christ and therefore an heir to the promises made to Abraham.

anyone who rejects Christ, rejects the Father who sent him and therefore is still an enemy of God. it doesn’t matter if such a person is irish, german, greek, African, arab or jewish.

[wafflehouse]

so many people misunderstand paul that its not really good to use in debates. Im sure you can agree that having Christians and Jews (even if they worship the same God), they do not qualify as 'one flock'. Paul himself was a jew and a Pharisee. so what does he mean in that verse?
here is one for you:

15And count the patience of our Lord as salvation, just as our beloved brother Paul also wrote to you according to the wisdom given him,
16 as he does in all his letters when he speaks in them of these matters. There are some things in them that are hard to understand, which the ignorant and unstable twist to their own destruction, as they do the other Scriptures.
17 You therefore, beloved, knowing this beforehand, take care that you are not carried away with the error of lawless people and lose your own stability.