Olive: Symbolical
Source: Nav
Zechariah 4:2–12
“What do you see?” he asked. “I see a solid gold lampstand,” I replied, “with a bowl at the top and seven lamps on it, with seven spouts to the lamps. / There are also two olive trees beside it, one on the right side of the bowl and the other on its left.” / “What are these, my lord?” I asked the angel who was speaking with me.
Revelation 11:4
These witnesses are the two olive trees and the two lampstands that stand before the Lord of the earth.