All the flocks and the herds, to wit, which the Amalekites had taken from the Philistines, or others. Before those other cattle; before those which belonged to Ziklag. This is David's spoil, i.e. the soldiers, who lately were so incensed against David, that they spake of stoning him; now upon this success magnify him, and triumphantly celebrate his praise; and say concerning this spoil, David purchased it by his valour and conduct, and he may dispose of it as he pleaseth.
Related Commentaries of 1 Samuel 30:20
1 Samuel 30:20
20 And David took all the flocks and the herds, which they drave before those other cattle, and said, This is David's spoil.