What does 1 Samuel 30:24 mean?

Whoever went out to fight and whoever stayed behind to watch the supplies—they both get the same share. That’s how it’s going to be from now on. 1 Samuel 30:24 - Modern Text Bible

(David is making it clear that everyone who contributes, whether on the front lines or supporting from behind, deserves equal reward. He’s setting a new standard for fairness among his people.)