'Follower' in the Bible

So Ahab summoned Obadiah, who supervised the palace. (Now Obadiah was a very loyal follower of the Lord.

But when I leave you, the Lord's spirit will carry you away so I can't find you. If I go tell Ahab I've seen you, he won't be able to find you and he will kill me. That would not be fair, because your servant has been a loyal follower of the Lord from my youth.