These songs are all Catholic parodies and very humourous. Should I Stand or Should I Kneel covers the confusion newcomers feel trying to work out when to stand, sit or kneel at Mass. Ariel's comment was how rude the singer's friend was to invite him to Mass and then sleep in, leaving the singer to work out what to do himself. Very funny.
We purchased the albums from iTunes, but there are other alternatives on Nick's website.