'Wheel' in the Bible

Now as I beheld the living creatures, behold, one wheel upon the earth beside the living creatures, for each of the four faces thereof.

The appearance of the wheels and their work was like unto a beryl: and they four had one likeness; and their appearance and their work was as it were a wheel within a wheel.

And it came to pass, when he commanded the man clothed in linen, saying, Take fire from between the whirling wheels, from between the cherubim, that he went in, and stood beside a wheel.

And I looked, and behold, four wheels beside the cherubim, one wheel beside one cherub, and another wheel beside another cherub; and the appearance of the wheels was like unto a beryl stone.

And as for their appearance, they four had one likeness, as if a wheel have been within a wheel.