Thematic Bible: David and ittai

Then the king said to Ittai the Gittite, Why are you coming with us? go back and keep with the king: for you are a man of another country, you are far from the land of your birth. It was only yesterday you came to us; why then am I to make you go up and down with us? for I have to go where I may; go back then, and take your countrymen with you, and may the Lord's mercy and good faith be with you. And Ittai the Gittite in answer said, By the living Lord, and by the life of my lord the king, in whatever place my lord the king may be, for life or death, there will your servant be.