'Separated' in the Bible

And of the Gadites there separated themselves unto David to the stronghold in the wilderness, mighty men of valor, men trained for war, that could handle shield and spear; whose faces were like the faces of lions, and they were as swift as the roes upon the mountains;

The sons of Amram: Aaron and Moses; and Aaron was separated, that he should sanctify the most holy things, he and his sons, for ever, to burn incense before Jehovah, to minister unto him, and to bless in his name, for ever.