'Olive tree' in the Bible

And a gleaning shall be left in it, as at the shaking of an olive-tree: two, three berries above, in the tree-top; four, five in its fruitful boughs, saith Jehovah, the God of Israel.

For so will it be in the midst of the land among the peoples, as the shaking of an olive-tree, as the grape-gleanings when the vintage is done.