King James Version
Then he said, God do so and more also to me, if the head of Elisha the son of Shaphat shall stand on him this day.English Standard Version
and he said, "May God do so to me and more also, if the head of Elisha the son of Shaphat remains on his shoulders today."New International Version
He said, "May God deal with me, be it ever so severely, if the head of Elisha son of Shaphat remains on his shoulders today!"