All makers of idols are nothing, and the things they treasure are worthless. Their witnesses fail to see or comprehend, so they are put to shame.
KJV
They that make a graven image [are] all of them vanity; and their delectable things shall not profit; and they [are] their own witnesses; they see not, nor know; that they may be ashamed.
ASV
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.