It would be vain to pretend that Olaf Tryggvesson, when he undertook the task of destroying the Asa faith, had any conception of the superior sociological value of the new faith over the old. Not even the conception of one God, instead of many, seems to have been emphasized in the preaching of those days. On the contrary, the Christian religion was adapted, as far as possible, to the pre-existing polytheistic notions, and a new hierarchy, consisting of the Trinity, the Virgin Mary, and a host of saints, was exalted as objects of worship instead of the old gods. If the character of the religious teaching is to be inferred from the character of the teachers, it is safe to conclude that the early Germanic Christianity was ethically not far removed from the religion which it came to supplant. Thus we hear much in the Saga of Olaf Tryggvesson of a priest named Thangbrand, whose violence, pugnacity, and readiness to kill must have made him an odd exponent of the gospel of peace. Thangbrand was a Saxon, and had been sent north with many other missionaries to assist in converting the Danes. Bishop Siric, of Canterbury, presented him during a visit with a curiously wrought shield, upon which was the image of the crucified Christ. Shortly after this occurrence, Thangbrand made the acquaintance of Olaf Tryggvesson, who admired the shield greatly and desired to buy it. The priest received a munificent compensation, and finding himself suddenly rich, went and bought a beautiful Irish girl, whose charms had beguiled him. A German warrior who saw the girl claimed her, and when his demand was scornfully refused challenged the priest. A duel was fought and the German was killed. Some ill feeling was aroused against Thangbrand by this incident, and he fled to his friend, Olaf Tryggvesson, and became his court chaplain. As such he was under the authority of Bishop Sigurd, an Anglo-Saxon, probably of Norse descent, whom Olaf had brought with him from England. Bishop Sigurd was a man of grave and gentle spirit and a striking contrast to the ferocious court chaplain.