2 Samuel 15:18-19

15:18 All his servants were leaving with him, along with all the Kerethites, all the Pelethites, and all the Gittites – some six hundred men who had come on foot from Gath. They were leaving with the king.

15:19 Then the king said to Ittai the Gittite, “Why should you come with us? Go back and stay with the new king, for you are a foreigner and an exile from your own country.