13 During harvest time, three of the thirty chief warriors came down to David at the cave of Adullam, while a band of Philistines was encamped in the Valley of Rephaim.

Read 2 Samuel 23:13 Using Other Translations

And three of the thirty chief went down, and came to David in the harvest time unto the cave of Adullam: and the troop of the Philistines pitched in the valley of Rephaim.
And three of the thirty chief men went down and came about harvest time to David at the cave of Adullam, when a band of Philistines was encamped in the Valley of Rephaim.
Once during the harvest, when David was at the cave of Adullam, the Philistine army was camped in the valley of Rephaim. The Three (who were among the Thirty—an elite group among David’s fighting men) went down to meet him there.