'Separated' in the Bible

I said to the nobles, and to the rulers and to the rest of the people, "The work is great and large, and we are separated on the wall, one far from another.

The seed of Israel separated themselves from all foreigners, and stood and confessed their sins, and the iniquities of their fathers.

The rest of the people, the priests, the Levites, the porters, the singers, the Nethinim, and all those who had separated themselves from the peoples of the lands to the law of God, their wives, their sons, and their daughters, everyone who had knowledge, and understanding --

It came to pass, when they had heard the law, that they separated from Israel all the mixed multitude.