18. rings--that is, felloes or circumferences of the wheels.
eyes--The multiplicity of eyes here in the wheels, and
Eze 10:12,
in the cherubim themselves, symbolizes the plenitude of intelligent
life, the eye being the window through which "the spirit of the
living creatures" in the wheels
(Eze 1:20)
looks forth (compare
Zec 4:10).
As the wheels signify the providence of God, so the eyes imply that He
sees all the circumstances of each case, and does nothing by blind
impulse.
JFB.
Picture Study Bible