2 Samuel 15:19-20

19Then the king said to Ittai the Gittite, “Why are you also going with us? Return and remain with the king. For you are a foreigner and also an exile from your own place.

20In fact, you came only yesterday. Should I make you wander up and down with us today, since I go I know not where? Return, and take your brethren back. Mercy and truth be with you.”