'Separated' in the Bible

The Israelites who had returned from exile ate it, together with all who had separated themselves from the uncleanness of the Gentiles of the land in order to worship Yahweh, the God of Israel.

After these things had been done, the leaders approached me and said: “The people of Israel, the priests, and the Levites have not separated themselves from the surrounding peoples whose detestable practices are like those of the Canaanites, Hittites, Perizzites, Jebusites, Ammonites, Moabites, Egyptians, and Amorites.