'Seven' in the Bible

For, behold, the stone that I have set before Joshua; on one stone are seven eyes: behold, I will engrave its engraving,' says Yahweh of Armies, 'and I will remove the iniquity of that land in one day.

He said to me, "What do you see?" I said, "I have seen, and behold, a lampstand all of gold, with its bowl on the top of it, and its seven lamps thereon; there are seven pipes to each of the lamps, which are on the top of it;

Indeed, who despises the day of small things? For these seven shall rejoice, and shall see the plumb line in the hand of Zerubbabel. These are the eyes of Yahweh, which run back and forth through the whole earth."