Charles Spurgeon Commentary Isaiah 40:18

"To whom then will ye liken God? or what likeness will ye compare unto him?" — Isaiah 40:18 (ASV)

Or what likeness will you compare to him?

The heathen made these supposed likenesses of God. Here is a description of the process by which they manufactured their idol gods.

To whom then will you liken God?

This is a strong argument against idolatry, against the worship of God under any visible form whatsoever: To whom then will you liken God?