Thomas Aquinas

Second, as to idols which are made from wood: the carpenter. And first, he shows the worthlessness of the idol, setting out its efficient cause with his tools: his rule, for making the wood straight; a plane, an instrument curved back from the side for hollowing out wood; with corners, that is, four-sided in shape, or this is the name of a tool for making shapes of this kind; the compass, that is, the lathe; as to its formal cause: and he has made the image.

Commentary on Isaiah ↗