'Olive branches' in the Bible

and that they should publish and proclaim in all their cities, and in Jerusalem, saying, "Go out to the mountain, and get olive branches, and branches of wild olive, and myrtle branches, and palm branches, and branches of thick trees, to make booths, as it is written."

I asked him the second time, "What are these two olive branches, which are beside the two golden spouts, that pour the golden oil out of themselves?"