1 Samuel 17:53
“And the children of Israel returned from chasing after the Philistines, and they spoiled their tents.”
Therefore David ran, and stood upon the Philistine, and took his sword, and drew it out of the sheath thereof, and slew him, and cut off his head therewith. And when the Philistines saw their champion was dead, they fled.
And the men of Israel and of Judah arose, and shouted, and pursued the Philistines, until thou come to the valley, and to the gates of Ekron. And the wounded of the Philistines fell down by the way to Shaaraim, even unto Gath, and unto Ekron.
And the children of Israel returned from chasing after the Philistines, and they spoiled their tents.
And David took the head of the Philistine, and brought it to Jerusalem; but he put his armour in his tent.
And when Saul saw David go forth against the Philistine, he said unto Abner, the captain of the host, Abner, whose son is this youth? And Abner said, As thy soul liveth, O king, I cannot tell.
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Related Verses
“They smote also the tents of cattle, and carried away sheep and camels in abundance, and returned to Jerusalem.”
“And the men of Israel and of Judah arose, and shouted, and pursued the Philistines, until thou come to the valley, and to the gates of Ekron. And the wounded of the Philistines fell down by the way to Shaaraim, even unto Gath, and unto Ekron.”
“He arose, and smote the Philistines until his hand was weary, and his hand clave unto the sword: and the Lord wrought a great victory that day; and the people returned after him only to spoil.”
“And he gathered an host, and smote the Amalekites, and delivered Israel out of the hands of them that spoiled them.”
“And there was nothing lacking to them, neither small nor great, neither sons nor daughters, neither spoil, nor any thing that they had taken to them: David recovered all.”