Judges 9:35-36

35When Gaal son of Ebed came out and stood at the entrance to the city’s gate, Abimelech and his men got up from their hiding places.

36Gaal saw the men and said to Zebul, “Look, men are coming down from the tops of the hills.” But Zebul said to him, “You are seeing the shadows on the hills – it just looks like men.”