The prophet Malachi speaks the words of Hashem calling the people to see clearly with their eyes, and reminding them that Essau has been rejected and his heritage attacked by jackals, but the people have also rejected Hashem, and their sacrifices are polluted with corrupt blemished offerings, so that dung will fall on their faces. Shit will happen to those who are into deception and cruelty. The lips of the priests should awaken us again to Torah. Here is a warning that abandoning the wisdom of Torah leads to a foul existence.