1 Samuel 25:14-16

But one of Nabal’s young men told Abigail, Nabal’s wife, “Listen, David sent messengers out of the wilderness to bless (greet) our master, and he shouted at them [in contempt]. But David’s men were very good to us, and we were not harmed or treated badly, nor did we miss anything as long as we were with them, when we were in the fields. They were a wall [of protection] to us both night and day, all the time that we were with them tending the sheep.