'Three Days' in the Bible

They were there with David three days, eating and drinking; for their brothers had made preparation for them.

either three years of famine; or three months to be consumed before your foes, while the sword of your enemies overtakes you; or else three days the sword of Yahweh, even pestilence in the land, and the angel of Yahweh destroying throughout all the borders of Israel. Now therefore consider what answer I shall return to him who sent me.'"