JDG 6:11

11 One day Yahweh appeared [in the form of] an angel and sat underneath a big oak tree at Ophrah [town]. That tree belonged to Joash, who was from the clan of Abiezer. Joash’s son Gideon was threshing wheat in the pit where they pressed [grapes to make] wine. He was threshing the grain there in order to hide it from the people of Midian.