Albert Barnes Commentary Ezekiel 1:15

"Now as I beheld the living creatures, behold, one wheel upon the earth beside the living creatures, for each of the four faces thereof." — Ezekiel 1:15 (ASV)

Translate it: one wheel upon the earth by each of the living creatures on its four sides (that is, on the four sides of each of the living creatures). There was a wheel for “each” of the living creatures: it was set “by,” that is, immediately “beneath” the feet of the living creature, and was constructed for direct motion in any of the four lines in which the creatures themselves moved.

Their work or make, that is, their construction, was a wheel in the middle of a wheel; the wheel was composed of two circumferences set at right angles to each other, like the equator and meridian upon a globe.

A wheel so placed and constructed did its part alike on each side of the living creature beneath which it stood. The ten bases of the temple (1 Kings 7:27–36) were constructed with lions, oxen, and cherubim, between the ledges and wheels at the four corners attached beneath so as to move like the wheels of a chariot.