'Separate' in the Bible

"Speak to the {Israelites} and say to them, 'When a man or a woman takes a special vow, a vow of a {Nazirite}, to keep separate for Yahweh,

"And you will separate the Levites from the midst of the {Israelites}, and the Levites will be for me.

"Separate yourselves from the midst of this community, that I can destroy them in a moment."