30:24 Part alike - A prudent and equitable constitution, and therefore practiced by the Romans, as Polybius and others note. The reason of it is manifest; because they were exposed to hazards, as well as their brethren: and were a reserve to whom they might retreat in case of a defeat; and they were now in actual service, and in the station in which their general had placed them.
30:21-31 What God gives us, he designs we should do good with. In distributing the spoil, David was just and kind. Those are men of Belial indeed, who delight in putting hardships upon their brethren, and care not who is starved, so that they may be fed to the full. David was generous and kind to all his friends. Those who consider the Lord as the Giver of their abundance, will dispose of it with fairness and liberality.