Charles Ellicott Commentary Isaiah 44:9

"They that fashion a graven image are all of them vanity; and the things that they delight in shall not profit; and their own witnesses see not, nor know: that they may be put to shame." — Isaiah 44:9 (ASV)

Are all of them vanity ... —Once more Isaiah’s favorite tohu—the symbol of the primeval chaos.

Their delectable things ... —The generic term used for works of art (Isaiah 2:16), especially for what people delight to worship. (Lamentations 1:10.)

They are their own witnesses ... —Better, their witnesses (i.e., the worshippers who sing their praises) do not see and do not know.