Malachi 2:3

2:3 I am about to discipline your children and will spread offal on your faces, the very offal produced at your festivals, and you will be carried away along with it.

Malachi 4:3

4:3 You will trample on the wicked, for they will be like ashes under the soles of your feet on the day which I am preparing,” says the Lord who rules over all.