Then David and the people who were with him raised their voices and wept until they had no more strength to weep.
Here we have, I. The descent which the Amalekites made upon Ziklag in David's absence, and the desolations they made there. They surprised the city when it was left unguarded, plundered it, burnt it, and carried all the women and children captives, Sa1 30:1, Sa1 30:2. They intended, by this to revenge the like havoc that David had lately made of them and their country, Sa1 27:8.
Commenting on 1 Samuel 30:1-6
Then David and the people that were with him lifted up their voice,.... In doleful shrieks, and loud lamentations: and wept, until they had no more power to weep; till nature was quite exhausted, and no moisture left; so the Vulgate Latin version, "till tears failed in them"; they could shed no more.
Wept, until they had no more power to weep - This marks great distress; they wept, as says the Vulgate, till their tears failed them.