Bible Verses About Aliens: David's kindness to

Then the king said to Ittai the Gitti, "You too? Why are you going with us? Go back, and stay with your king, since you are both a foreigner and in exile from your own place.

You arrived only yesterday; should I ask you to wander around with us? There's no telling where I may go. Return, and take your kinsmen back with you. Grace and truth be with you."