This is just to supplement Ken Graham's excellent answer which covers both the Jewish and Christian views of the lampstand in question.

The Jewish nation was given specific instructions for the design of the lampstand that was to grace the Tabernacle in the wilderness, as written down in the ancient Hebrew scriptures, specifically in the book of Exodus chapter 25 verses 31-40. Here is a partial quotation with the relevant instructions:

"Make a lampstand of pure gold and hammer it out, base and shaft; its flower-like cups, buds and blossoms shall be of one piece with it. Six branches are to extend from the sides of the lampstand - three on one side and three on the other. Three cups shaped like almond flowers with buds and blossoms are to be on one branch, three on the next branch and the same for all six branches extending from the lampstand... Then make its seven lamps and set them up on it so that they might light the space in front of it... See that you make them according to the pattern shown you on the mountain."

The mountain was Sinai, and the instructions were initially given to Moses. That is why the ancient Jews used a lampstand with seven points upon which cups for wicks with oil would provide light as part of the Tabernacle furnishings. Absolute conformity to God's instructions for the design and materials was required if the worship of God in the Tabernacle was to be accepted by God. That was the understanding of the people of Israel, as explained in the ancient Hebrew scriptures. They knew the number seven to stand for completeness with regard to the things of God.

This is just to supplement Ken Graham's excellent answer which covers both the Jewish and Christian views of the lampstand in question.

The Jewish nation was given specific instructions for the design of the lampstand that was to grace the Tabernacle in the wilderness, as written down in the ancient Hebrew scriptures, specifically in the book of Exodus chapter 25 verses 31-40. Here is a partial quotation with the relevant instructions:

"Make a lampstand of pure gold and hammer it out, base and shaft; its flower-like cups, buds and blossoms shall be of one piece with it. Six branches are to extend from the sides of the lampstand - three on one side and three on the other. Three cups shaped like almond flowers with buds and blossoms are to be on one branch, three on the next branch and the same for all six branches extending from the lampstand... Then make its seven lamps and set them up on it so that they might light the space in front of it... See that you make them according to the pattern shown you on the mountain."

The mountain was Sinai, and the instructions were initially given to Moses. That is why the ancient Jews used a lampstand with seven points upon which cups for wicks with oil would provide light as part of the Tabernacle furnishings. Absolute conformity to God's instructions for the design and materials was required if the worship of God in the Tabernacle was to be accepted by God. That was the understanding of the people of Israel, as explained in the ancient Hebrew scriptures. They knew the number seven to stand for completeness with regard to the things of God.