2 Samuel 15:21

And Ittai answered the king, and said
With an oath, as follows:

[as] the Lord liveth, and [as] my lord the king liveth;
which he took to confirm what he after says, and to put an end to the debate between them:

surely, in what place my lord the king shall be, whether in death or
life, even there also will thy servant be;
signifying that he would attend him wherever he went, hazard his life in his cause, and live and die with him.