'Olive branches' in the Bible

And that they should publish and proclaim in all their cities, and in Jerusalem, saying, Go forth unto the mountain, and bring olive branches, and pine branches, and myrtle branches, and palm branches, and branches of leafy trees, to make booths, as it is written.

And I answered again, and said unto him, What are these two olive branches which through the two golden pipes pour out the golden oil?