'Separate' in the Bible

And the seed of Israel made themselves separate from all the men of other nations, publicly requesting forgiveness for their sins and the wrongdoing of their fathers.

And the rest of the people, the priests, the Levites, the door-keepers, the music-makers, the Nethinim, and all those who had made themselves separate from the peoples of the lands, to keep the law of God, their wives, their sons, and their daughters, everyone who had knowledge and wisdom;

And it cometh to pass, at their hearing the law, that they separate all the mixed people from Israel.