Meanwhile, David ordered Amasa, "Muster the army of Judah here within three days, and be here yourself!"

So Gad went to David and asked him, "Shall seven years of famine come to your land, or three months of reversals while you flee from your enemies as they pursue you, or three days of pestilence in your land? Decide right now what I am to answer to the one who sent me."

One day while the Philistine army was camping in the valley of giants, three of the 30 leaders joined David at the cave of Adullam.