Ages of Ages is for SATB a capella choir. It is inspired by text taken from the medieval Old Hispanic chant, León 8, fol. 273:
Et non deficiet ex te vir qui compleat voluntatem meam;
and León 8, fol. 88v:
Gloria et honor patri et filio et spiritui sancto et nunc and semper et in saecula saeculorum.
An English translation is used for this piece.