Cross reference
Jeremiah 49:9
9 If grape-gatherers came to thee, would they not leave some gleaning grapes? if thieves by night, would they not destroy till they had enough?
Obadiah 1:5-6
5 If thieves came to thee, if robbers by night (how art thou cut off!), would they not steal `only' till they had enough? if grape-gatherers came to thee, would they not leave some gleaning grapes?
6 How are `the things of' Esau searched! how are his hidden treasures sought out!
Isaiah 17:6
6 Yet there shall be left therein gleanings, as the shaking of an olive-tree, two or three berries in the top of the uppermost bough, four or five in the outmost branches of a fruitful tree, saith Jehovah, the God of Israel.