'Separated' in the Bible

Of the Gadites there separated themselves to 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 on 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, forever, to burn incense before Yahweh, to minister to him, and to bless in his name, forever.