Practicing, preaching.

Suppose I'm a big man, like with a lot of followers for whom my word is the bible.

And one day, in all my benevolence and general light shiningness,  I say, "Practice and do not preach."

That's a fucking tricky commandment. If my dear followers do so, they would be doing exactly what I asked them to not do. A curse upon them!

Go be happy now, even if that means recreational drug use and sexual promiscuity.