ESV: They are both stupid and foolish; the instruction of idols is but wood!
NIV: They are all senseless and foolish; they are taught by worthless wooden idols.
NASB: But they are altogether stupid and foolish; The instruction from idols is nothing but wood!
CSB: They are both stupid and foolish, instructed by worthless idols made of wood!
NLT: People who worship idols are stupid and foolish. The things they worship are made of wood!
KJV: But they are altogether brutish and foolish: the stock is a doctrine of vanities.
NKJV: But they are altogether dull-hearted and foolish; A wooden idol is a worthless doctrine.