Rubbing ones Nose in it

Christians are prudish people. They are frequently appalled by scatological humour or coarse talk. In fact, the Bible teaches to avoid coarse joking. But naturally, it depends on the way in which it is used and the motive behind it. God uses this language to make a point - and a very powerful point it is too, as I heard on Sunday, listening to Malachi, chapter 2. The priests running the temple are offering God second-rate sacrifices, blind and lame animals and witholding their best from God, because ultimately, they do not believe God is good. God says this:

2 “And now, O priests, this command is for you. 2 If you will not listen, if you will not take it to heart to give honor to my name, says the Lord of hosts, then I will send the curse upon you and I will curse your blessings. Indeed, I have already cursed them, because you do not lay it to heart. 3 Behold, I will rebuke your offspring, and spread dung on your faces, the dung of your offerings, and you shall be taken away with it.

Now, that's a powerful image. It is both humourous, repellent and highly effective. God will not be mocked.