1 Samuel 30:24-26

24Who would listen to you in this matter? The share of him who went down to the battle is to be the same as that of him who remained by the baggage. They will share alike.”

25So it has been from that day forward—he made it a statute and an ordinance for Israel to this day.

26When David arrived at Ziklag, he sent some of the spoil to the elders of Judah, to his friends, saying, “Look, a blessing for you from the spoil of the enemies of Adonai,”