Ezekiel 10:9-13

And when I looked, there were four wheels by the cherubim, one wheel by one cherub and another wheel by each other cherub; the wheels appeared to have the color of a beryl stone. As for their appearance, all four looked alike—as it were, a wheel in the middle of a wheel. When they went, they went toward any of their four directions; they did not turn aside when they went, but followed in the direction the head was facing. They did not turn aside when they went. And their whole body, with their back, their hands, their wings, and the wheels that the four had, were full of eyes all around. As for the wheels, they were called in my hearing, “Wheel.”