'Circumference' in the Bible

He fashioned two bronze pillars, each one eighteen cubits high, with a circumference of twelve cubits.

Hiram also made a sea of cast metal ten cubits from brim to brim, circular in shape and five cubits and 30 cubits in its inner circumference.

They are longer than the earth's circumference, and broader than the ocean.

Each of the pillars was twelve cubits high and its circumference twelve cubits. It was hollow and about a handbreadth thick.