Brutish in his knowledge. — Literally, from knowing, i.e., too brutish to know, or, as some take it, brutish without knowledge, overwhelmed and astounded, so that the power of knowing fails.
Every founder. — The smelter, or worker in molten metal.
Related Commentaries of Jeremiah 10:14
Jeremiah 10:14
14 Every man is brutish in his knowledge: every founder is confounded by the graven image: for his molten image is falsehood, and there is no breath in them.