This manuscript contains a commentary on the Book of Isaiah by the 9th-century bishop of Halberstadt, Haymo. A student of the Anglo-Saxon master, Alcuin, at Tours and friend of Hrabanus Maurus, who wrote an important poem on the cross, Haymo was typical of the theological writers of his age in that writing something original was of no importance to him. His commentary on Isaiah and other works condense, paraphrase and compile earlier writings. His main themes where the moral and mystical meanings of scripture, which allowed him to follow the advice of his friend, Hrabanus, and stay out of controversy. On this page, Haymo comments on Isaiah 6, the prophet's vision of the Lord surrounded by chanting seraphim and the cleansing of his lips with a burning coal. The marks in the margin indicate citation of scripture. The section begins with a large, decorated first letter. The decoration is restrained: it was a working book rather than one for display.