Isaiah 17:5-6

5And it will be like the reaper gathering the standing grain, As his arm harvests the ears of grain; Yes, it will be like one gleaning ears of grain In the [fertile] Valley of Rephaim.

6Yet gleanings will be left in the land [of Israel] like the shaking of the olive tree, Two or three olives on the topmost branch, Four or five on the [outermost] branches of the fruitful tree,” Declares the Lord, the God of Israel.