Bishop of our holy and undivided

Bishop George Berkeley, the Irish philosopher whose dictum was "To be is to be perceived". Basically, the theory is that we can only directly know sensations and ideas of objects, not abstractions such as "matter". http://en.wikipedia.org/wiki/George_Berkeley

Hence "undivided".

A few lines down Berkeley's "to be is to be perceived" is alluded to through Shakespeare's "to be, or not to be, that is the question": "me ken or no me ken Zot is the Quiztune".

Berkeley repudiated John Locke's ("lock" appears a few lines down) concept of substance.