AMO 1:3

3 This is [also] what Yahweh said [to me]: “[I will punish the people of] Damascus, [the capital of Syria,] because of the many sins that they have committed; I will not [change my mind about punishing them] [MTY], because [the cruel things that they did to the people of the] Gilead [region] [were like] [MET] people threshing grain using sledges [that have ◄iron teeth/sharp iron nails► in them].