Cross reference
Ezekiel 4:12
12 And thou shalt eat it as barley cakes, and thou shalt bake it in their sight with dung that cometh out of man.
Isaiah 36:12
12 But Rabshakeh said, Hath my master sent me to thy master, and to thee, to speak these words? `hath he' not `sent me' to the men that sit upon the wall, to eat their own dung, and to drink their own water with you?
Genesis 18:6
6 And Abraham hastened into the tent unto Sarah, and said, Make ready quickly three measures of fine meal, knead it, and make cakes.