The prefaces of the new translation of the Roman Missal now mention several choirs of angels which we join in singing God’s praises in the Sanctus. Several people have asked me about the origin of the ‘nine choirs of angels,’ so I will share a paper I wrote on the topic. I have written an abstract which answers the question in a few paragraphs. If you’re still interested and brave, read the paper further below. An anonymous sixth century monk... Read more