Reference: Foursquare
Morish
This may perhaps be said to be the most perfect earthly shape of a plane (the 'cube' being perfection for a solid). See 'four' under NUMBFRS. It was the shape of the brazen altar, Ex 27:1; 38:1; the breastplate, Ex 28:16; 39:9; and the altar of incense, Ex 30:2; 37:25. Apparently it was the shape of the 'panels' of the base of the molten sea in Solomon's temple, 1Ki 7:31; also of the court of the future temple, Eze 40:47; the altar of the same, Eze 43:16; the portion of the land offered as a holy oblation, Eze 48:20; for the sanctuary, Eze 45:2; and for the city, Eze 48:16.
See Verses Found in Dictionary
"You are to make the altar of acacia wood. It is to be five cubits long and five cubits wide; the altar is to be a square, and it is to be three cubits high.
It is to be square when folded double, one hand span long and one hand span wide.
It is to be a square, one cubit long and one cubit wide, and it is to be two cubits high, with its horns of one piece with it.
He made the altar for burning incense of acacia wood, a square, one cubit long, one cubit wide, and two cubits high, with its horns of one piece with it.
Then he made the altar for burnt offerings of acacia wood. It was a square, five cubits long and five cubits wide, and it was three cubits high.
They made the breast piece square when folded double: one span in length and one span in width when folded double.
The opening to each water cart inside the crown on top was one cubit wide, with engravings on the opening. The borders to the frames surrounding the opening were square, not round.
He measured the court in the form of a square at 100 cubits long and 100 cubits wide. The altar stood in front of the Temple.
The hearth is to be twelve cubits long and twelve cubits wide; that is, it will be a four-sided square.
A Holy Place is to be dedicated from this area in the form of a square measuring 500 by 500 cubits, with a 50 cubit buffer zone surrounding it.
These are to be its dimensions: the north side, 4,500 units; the south side, 4,500 units; the east side, 4,500 units; and the west side 4,500 units.
The entire Terumah is to be 25,000 units by 25,000 units you are to reserve it as a holy Terumah in the form of a square within the city limits."