Because they practise and maintain

The language of the Beast:

Wee'l drive the Doctors out of doores,

And Arts, what ere [sic] they be;

Wee'l cry both Arts and Learning down;

And, hey! then up goe we.

Wee'l down with Deans and Prebends, too;

But I rejoyce to tell ye

How then we will eat Pig our fill,

And Capon by the belly: