Who is John Piper channeling when he tweets?

"John Piper Channeling" by nakedpastor David Hayward They are all pretty much quotes except for Fox News', as far as I know. But that's the impression Fox News communicates to me. Every once in a while John Piper will come out with a tweet that takes time to figure out. Like this one. The subject of today's cartoon above. Or like his Ebola of unbelief one. I know what it's like to try to come up with something terse and witty every day. But sometimes his tweets just seem a little off. I know I can be accused of the same thing. My concern is for those issues that are still hot, like sexism. It is alive and well. Unfortunately.