1 Samuel 20:3

And David answered Jonathan, and said, Thy father knows surely that I have found grace in thy sight, and he said, Let not Jonathan know this, lest he refuse his consent: but [as] the Lord lives and thy soul lives, as I said, [the space] is filled up between me and death.

And David sware moreover, and said, Thy father certainly knoweth that I have found grace in thine eyes; and he saith, Let not Jonathan know this, lest he be grieved: but truly as the Lord liveth, and as thy soul liveth, there is but a step between me and death.

David swore moreover, and said, “Your father knows well that I have found favor in your eyes; and he says, ‘Don’t let Jonathan know this, lest he be grieved;’ but truly as Yahweh lives, and as your soul lives, there is but a step between me and death.”