Then David and the people that were with him lifted up their voice and wept, until they had no more power to weep. Wept, until they had no more power to weep - This marks great distress; they wept, as says the Vulgate, till their tears failed them.
Related Commentaries of 1 Samuel 30:4
1 Samuel 30:4
4 Then David and the people that were with him lifted up their voice and wept, until they had no more power to weep.