John Gill Commentary 1 Samuel 25:13

"And David said unto his men, Gird ye on every man his sword. And they girded on every man his sword; and David also girded on his sword: and there went up after David about four hundred men; and two hundred abode by the baggage." — 1 Samuel 25:13 (ASV)

And David said unto his men
Provoked to the last degree to have such a rude churlish answer returned to such a civil and humble message as he had sent:

gird you on every man his sword ;
and prepare to march and chastise Nabal for his insolence:

and they girded on every man his sword ;
in obedience to David, and in vindication of his honour and their own:

and David also girded on his sword ;
in order to march at the head of them, fired with indignation at the affront given him:

and there went up after David about four hundred men ;
out of the six hundred he had with him, (1 Samuel 23:13) ;

and two hundred abode by the stuff ;
the baggage in their camp; the Targum is, they ``were left to watch the vessels;'' the things necessary for their use, for the dressing of their food, their bedding