'Separated' in the Bible

After these things occurred, certain officials approached me and said "The people of Israel, the priests, and the descendants of Levi have not separated themselves from the people of the lands or from the detestable behavior of the Canaanites, the Hittites, the Perizzites, the Jebusites, the Ammonites, the Moabites, the Egyptians, and the Amorites,

Whoever would not come within three days would forfeit his assets and be separated from the community of the returning exiles, just as the high officials and elders had advised.