'Separated' in the Bible

and he hath separated to Jehovah the days of his separation, and he hath brought in a lamb, a son of a year, for a guilt-offering, and the former days are fallen, for his separation hath been defiled.

and thou hast separated the Levites from the midst of the sons of Israel, and the Levites have become Mine;

is it little to you that the God of Israel hath separated you from the company of Israel to bring you near unto Himself, to do the service of the tabernacle of Jehovah, and to stand before the company to serve them? --

'Be ye separated from the midst of this company, and I consume them in a moment;'