I only now noticed that, thanks to SteveM / Kwaw, a complete English translation of the Steele Sermon (Sermones de Ludo cum Aliis) is available on Tarotpedia:
http://www.tarotpedia.com/wiki/Sermones ... _Cum_Aliis
The Sermon is the earliest known source listing all the twenty-two trumps.
I think the Sermon is a great read. The monk who wrote it made a great used of demonic images, the result makes me think of the literary version of a Bosch painting.
There are many details that are worth considering. These two are connected to recent discussions on this forum:
* the Sermon mentions the games of Falcinellus, Tertia and Quarta, that are also mentioned by Ugo Trotti
* the Sermon identifies the World trump with God the Father; this has been recently pointed out by MikeH, and it is also relevant to our discussions about the Tarot de Marseille World card and Jesus Christ.