Genre: 
Full text: 
Israel es tu rex Davidis et inclyta proles nomine qui in domini rex benedicte venis
Fulltext source: 
PL 105 0308B-0309D, Theodulfus Aurelianensis, Corpus Corporum (Universitaet Zuerich); also Google Books: Carmina e poetis christianis excerpta ad usum scholarum ed., et permultas interpretations (Clement, 1854);
CAO sources: 
DF