The king said to the guard who stood about him, Turn, and kill the priests of Yahweh; because their hand also is with David, and because they knew that he fled, and didn't disclose it to me. But the servants of the king wouldn't put forth their hand to fall on the priests of Yahweh.
Verse four. Now the word "hold" is "Masada", and there are those who believe that actually David was there in the hold, or in the fort of Masada which of course was later really developed by king Herod as a winter palace and a fortress. So it is possible David was down in that area of the Dead Sea. It is possible that this is indeed a reference to Masada, but he was there in the hold or in the fort wherever it might have been.