'Separated' in the Bible

Until certain people came from James, he had been eating with the Gentiles. But when they arrived, he stopped doing this and separated himself because he was afraid of those who were pro-circumcision.

But when we were separated from you, brothers and sisters, for a short time (in presence, not in affection) we became all the more fervent in our great desire to see you in person.

For perhaps it was for this reason that he was separated from you for a little while, so that you would have him back eternally,