Jeremiah 10:8

8 They are all senseless and foolish; they are taught by worthless wooden idols.

Read Jeremiah 10:8 Using Other Translations

But they are altogether brutish and foolish: the stock is a doctrine of vanities.
They are both stupid and foolish; the instruction of idols is but wood!
People who worship idols are stupid and foolish. The things they worship are made of wood!