Adam Clarke on Judges 6:26

With the wood of the grove - It is probable that אשרה Asherah here signifies Astarte; and that there was a wooden image of this goddess on the altar of Baal. Baal-peor was the same as Priapus, Astarte as Venus; these two impure idols were proper enough for the same altar. In early times, and among rude people, the images of the gods were made of wood. This is the case still with the inhabitants of the South Sea Islands, with the Indians of America, and with the inhabitants of Ceylon: many of the images of Budhoo are of wood. The Scandinavians also had wooden gods.