'Seven' in the Bible

For behold the stone that I have laid before Joshua; upon one stone shall be seven eyes: behold, I will engrave the graving thereof, saith the LORD of hosts, and I will remove the iniquity of that land in one day.

And said unto me, What seest thou? And I said, I have looked, and behold a candlestick all of gold, with a bowl upon the top of it, and his seven lamps thereon, and seven pipes to the seven lamps, which are upon the top thereof:

So I said, "I have been watching and look! there is a menorah made completely of gold with a bowl on top of it. And there are seven lights on it, along with seven feeder channels to the lamps, which are also on top of it. Two olive trees are near it, one on the right side of the bowl and one on the left."

For who hath despised the day of small things? for they shall rejoice, and shall see the plummet in the hand of Zerubbabel with those seven; they are the eyes of the LORD, which run to and fro through the whole earth.

I also asked him a second question: "What are these two olive branches on either side of the two golden feeder channels that carry the golden oil to the seven lights?"