2 Samuel 15:19-22

19Then the king turned and said to Ittai, a leader of the men from Gath, “Why are you coming with us? Go on back to King Absalom, for you are a guest in Israel, a foreigner in exile.

20You arrived only recently, and should I force you today to wander with us? I don’t even know where we will go. Go on back and take your kinsmen with you, and may the Lord show you his unfailing love and faithfulness.”

21But Ittai said to the king, “I vow by the Lord and by your own life that I will go wherever my lord the king goes, no matter what happens—whether it means life or death.”

22David replied, “All right, come with us.” So Ittai and all his men and their families went along.