Completed in 1917, the figures of Saints Peter, Paul and John gaze toward the east, from whence each prophesied that Christ would come again. The words inscribed on the frieze below the apse parapet are the angel’s chorus from Revelation (attributed to John): “Alleluia, The Lord God Omnipotent Reigneth, Alleluia.”

The figures and inscription represent the completion of the iconographic scheme that begins with Creation on the opposite end: they represent the last book of the New Testament and the expectation of Christ’s triumphant return.