'Separated' in the Bible

And of the Gadite there have been separated unto David, to the fortress, to the wilderness, mighty of valour, men of the host for battle, setting in array target and buckler, and their faces the face of the lion, and as roes on the mountains for speed:

Sons of Amram: Aaron and Moses; and Aaron is separated for his sanctifying the holy of holies, he and his sons -- unto the age, to make perfume before Jehovah, to serve Him, and to bless in His name -- unto the age.