4 Bible Verses about Jews Separate From Gentiles

Then the Samaritan woman said to him, How do you, being a Jew, ask a drink of me, who am a Samaritan? for the Jews do no business with the Samaritans.

and he said to them, You know that it is not lawful for a Jew to associate with a man of another nation, or come into his house; and God has taught me not to call any man common or impure;

Pilate answered, Am I a Jew? Your nation and the chief priests have delivered you to me; what have you done?

But when I saw that they walked not correctly, according to the truth of the gospel, I said to Peter before all, If you being a Jew live after the manner of the gentiles, and not after the manner of the Jews, why do you compel the gentiles to practise Judaism?